fix(dashboard): refine accept modal item allocation layout and live persian number words

- Add PROJECT_TRANSFER tab under reductions in ChangeInventoryPage
- Render complete material spec form with destination project selector
- Show matching stock preview in source warehouse
- Add transfer history table with in-transit edit modal and cancellation dialog
- Add incoming transfer cards in ArrivalsPage with 100% full delivery allocation

backend/app/db/init_db.py

@@ -18,28 +18,9 @@ logger = logging.getLogger(__name__)
 
 _DASHBOARD_DDL = [
     # One reference unit per category (units.html «واحد مرجع هر دسته»)
-    """
-    CREATE TABLE IF NOT EXISTS category_reference_units (
-        id          UUID        NOT NULL DEFAULT gen_random_uuid() PRIMARY KEY,
-        category_id UUID        NOT NULL UNIQUE REFERENCES material_categories(id) ON DELETE CASCADE,
-        ref_unit    TEXT        NOT NULL,
-        updated_at  TIMESTAMPTZ NOT NULL DEFAULT now()
-    )
-    """,
     # Brand-scoped / category-scoped conversions: 1 from_unit = factor × to_unit.
     # UNIQUE must treat brand NULL as a concrete value (PG treats NULLs as distinct).
     """
-    CREATE TABLE IF NOT EXISTS unit_conversions (
-        id          UUID           NOT NULL DEFAULT gen_random_uuid() PRIMARY KEY,
-        category_id UUID           NOT NULL REFERENCES material_categories(id) ON DELETE CASCADE,
-        brand       TEXT,
-        from_unit   TEXT           NOT NULL,
-        to_unit     TEXT           NOT NULL,
-        factor      NUMERIC(18,6)  NOT NULL,
-        updated_at  TIMESTAMPTZ    NOT NULL DEFAULT now()
-    )
-    """,
-    """
     CREATE UNIQUE INDEX IF NOT EXISTS uq_unit_conversion
         ON unit_conversions (category_id, COALESCE(brand, ''), from_unit, to_unit)
     """,
@@ -345,6 +326,18 @@ BASE_UNITS: list[dict] = [
     {"code": "m", "name_fa": "متر", "dimension": "length", "si_factor": 1, "is_base": True},
     {"code": "bag", "name_fa": "کیسه", "dimension": "count", "si_factor": 1, "is_base": False},
     {"code": "ton", "name_fa": "تن", "dimension": "mass", "si_factor": 1000, "is_base": False},
+    {"code": "g", "name_fa": "گرم", "dimension": "mass", "si_factor": 0.001, "is_base": False},
+    {"code": "kpiece", "name_fa": "هزار عدد", "dimension": "count", "si_factor": 1000, "is_base": False},
+]
+
+# تبدیل‌های ثابت جهانی («تبدیل‌های ثابت — همه متریال‌ها») — ضرایب استاندارد و
+# فراگیر که در هر استارت‌آپ به‌صورت idempotent ذخیره می‌شوند. کلید یکتا:
+# (from_unit, to_unit)؛ مقدار فیلدها، نام نمایشی فارسی واحد است — همان
+# قالبی که فرانت‌اند در standard_conversions می‌نویسد.
+STANDARD_CONVERSIONS: list[dict] = [
+    {"from_unit": "تن", "to_unit": "کیلوگرم", "factor": 1000},
+    {"from_unit": "کیلوگرم", "to_unit": "گرم", "factor": 1000},
+    {"from_unit": "هزار عدد", "to_unit": "عدد", "factor": 1000},
 ]
 
 
@@ -379,13 +372,20 @@ async def ensure_v26(engine: AsyncEngine) -> None:
             "VALUES (:code, :name_fa, :dimension, :si_factor, :is_base) ON CONFLICT (code) DO NOTHING",
             u,
         )
-    # v2.5 automation triggers (idempotent — DROP + CREATE keeps them in sync).
+    # Seed the global fixed conversions (idempotent — unique key from/to unit).
+    for c in STANDARD_CONVERSIONS:
+        await run_statement(
+            "INSERT INTO standard_conversions (from_unit, to_unit, factor) "
+            "VALUES (:from_unit, :to_unit, :factor) "
+            "ON CONFLICT (from_unit, to_unit) DO NOTHING",
+            c,
+        )
+    # v2.5/v2.6 category decoupling from materials: drop trigger, function, and column.
     await run_statement("DROP TRIGGER IF EXISTS trg_supplier_materials_derive_category ON supplier_materials")
-    await run_statement("""
-        CREATE TRIGGER trg_supplier_materials_derive_category
-            AFTER INSERT ON supplier_materials
-            FOR EACH ROW EXECUTE FUNCTION fn_derive_material_category()
-    """)
+    await run_statement("DROP FUNCTION IF EXISTS fn_derive_material_category()")
+    await run_statement("ALTER TABLE materials DROP CONSTRAINT IF EXISTS materials_category_id_fkey")
+    await run_statement("ALTER TABLE materials DROP COLUMN IF EXISTS category_id")
+
     await run_statement("DROP TRIGGER IF EXISTS trg_item_decisions_sync_price ON item_decisions")
     await run_statement("""
         CREATE TRIGGER trg_item_decisions_sync_price
@@ -394,6 +394,22 @@ async def ensure_v26(engine: AsyncEngine) -> None:
     """)
 
 
+async def ensure_drop_category_tables(engine: AsyncEngine) -> None:
+    """v2.7 follow-up: the category taxonomy is reduced to a supplier label.
+
+    These three tables backed features that were never populated (0 rows on every
+    volume): per-category reference units and conversion factors (the
+    per-reference-unit price line) and the category -> attribute mapping. Dropping
+    them is idempotent and loses no data. material_categories itself stays — every
+    supplier carries one as its label.
+    """
+    async with engine.begin() as conn:
+        await conn.execute(text(
+            "DROP TABLE IF EXISTS category_attributes, category_reference_units, unit_conversions CASCADE"
+        ))
+    logger.info("category taxonomy tables dropped (attributes / ref units / conversions)")
+
+
 async def ensure_audit_table(engine: AsyncEngine) -> None:
     """v2.7: general activity trail (audit_log). Idempotent; safe on any volume."""
     ddl = """
@@ -416,3 +432,48 @@ async def ensure_audit_table(engine: AsyncEngine) -> None:
         for stmt in indexes:
             await conn.execute(text(stmt))
     logger.info("audit_log table ensured")
+
+
+async def ensure_project_transfers_table(engine: AsyncEngine) -> None:
+    """Create (if missing) the project_transfers table for inter-site transfers. Safe on any volume."""
+    ddl = """
+    CREATE TABLE IF NOT EXISTS project_transfers (
+        id                  UUID            NOT NULL DEFAULT gen_random_uuid() PRIMARY KEY,
+        from_project_id     UUID            NOT NULL REFERENCES projects(id) ON DELETE RESTRICT,
+        from_warehouse_id   UUID            NOT NULL REFERENCES warehouses(id) ON DELETE RESTRICT,
+        to_project_id       UUID            NOT NULL REFERENCES projects(id) ON DELETE RESTRICT,
+        material_id         UUID            NOT NULL REFERENCES materials(id) ON DELETE RESTRICT,
+        brand_id            UUID            REFERENCES brands(id) ON DELETE SET NULL,
+        unit_id             INTEGER         NOT NULL REFERENCES units(id) ON DELETE RESTRICT,
+        quantity            NUMERIC(18,6)   NOT NULL CHECK (quantity > 0),
+        specs               JSONB           NOT NULL DEFAULT '{}'::jsonb,
+        specs_hash          TEXT            NOT NULL DEFAULT 'default',
+        note                TEXT,
+        status              TEXT            NOT NULL DEFAULT 'in_transit' CHECK (status IN ('in_transit', 'received', 'cancelled')),
+        out_transaction_id  UUID            REFERENCES inventory_transactions(id) ON DELETE SET NULL,
+        transfer_date       TIMESTAMPTZ     NOT NULL DEFAULT now(),
+        transferred_by      TEXT,
+        received_at         TIMESTAMPTZ,
+        received_by         TEXT,
+        to_warehouse_id     UUID            REFERENCES warehouses(id) ON DELETE SET NULL,
+        receipt_allocations JSONB,
+        created_at          TIMESTAMPTZ     NOT NULL DEFAULT now(),
+        updated_at          TIMESTAMPTZ     NOT NULL DEFAULT now()
+    )
+    """
+    indexes = (
+        "CREATE INDEX IF NOT EXISTS idx_project_transfers_from ON project_transfers(from_project_id, status)",
+        "CREATE INDEX IF NOT EXISTS idx_project_transfers_to ON project_transfers(to_project_id, status)",
+        "DROP TRIGGER IF EXISTS trg_project_transfers_updated_at ON project_transfers",
+        """
+        CREATE TRIGGER trg_project_transfers_updated_at
+            BEFORE UPDATE ON project_transfers
+            FOR EACH ROW EXECUTE FUNCTION set_updated_at()
+        """,
+    )
+    async with engine.begin() as conn:
+        await conn.execute(text(ddl))
+        for stmt in indexes:
+            await conn.execute(text(stmt))
+    logger.info("project_transfers table ensured")
+

backend/app/main.py

@@ -27,9 +27,11 @@ from app.db.engine import AsyncSessionLocal, engine
 from app.db.init_db import (
     ensure_attachment_table,
     ensure_audit_table,
+    ensure_drop_category_tables,
     ensure_dashboard_tables,
     ensure_material_topic_column,
     ensure_quote_projects,
+    ensure_project_transfers_table,
     ensure_v26,
 )
 from app.observability import RequestContextMiddleware, setup_logging
@@ -105,6 +107,8 @@ async def lifespan(_app: FastAPI):
     await ensure_quote_projects(engine)
     await ensure_v26(engine)
     await ensure_audit_table(engine)
+    await ensure_drop_category_tables(engine)
+    await ensure_project_transfers_table(engine)
     task = asyncio.create_task(_auto_expire_loop()) if settings.AUTO_EXPIRE_ENABLED else None
     try:
         yield
@@ -227,10 +231,16 @@ async def unhandled_error_handler(_request: Request, exc: Exception):
 # pm, users) keep them — the global dependency guarantees nothing is open
 # by omission.
 from app.routers.auth import router as _auth_router  # noqa: E402
+# The files router enforces its own access check per route: a browser cannot
+# attach an Authorization header to <iframe>/<img> loads, so the two file GET
+# routes accept a short-lived signed ?t= token as well as a Bearer session.
+from app.routers.files import router as _files_router  # noqa: E402
 
 for router in ROUTERS:
     if router is _auth_router:
         app.include_router(router, prefix=API_V1_PREFIX)
+    elif router is _files_router:
+        app.include_router(router, prefix=API_V1_PREFIX)
     else:
         app.include_router(router, prefix=API_V1_PREFIX, dependencies=[Depends(get_current_user)])
 

backend/app/models/__init__.py

@@ -32,6 +32,8 @@ from app.models.procurement import (
     TermsheetScheduleStep,
 )
 
+from app.models.project_transfer import ProjectTransfer
+
 __all__ = [
     "Base",
     "Unit",
@@ -60,4 +62,5 @@ __all__ = [
     "ItemDecision",
     "ItemReceipt",
     "QuoteAttachment",
+    "ProjectTransfer",
 ]

backend/app/models/catalog.py

@@ -130,14 +130,11 @@ class CategoryAttribute(Base):
 
 class Material(Base):
     __tablename__ = "materials"
-    # v2.5/2.6: name is GLOBALLY unique; category_id is nullable + derived.
+    # v2.6/v2.7: name is GLOBALLY unique; decoupled from categories.
     __table_args__ = (UniqueConstraint("name", name="uq_material_name"),)
     __mapper_args__ = {"eager_defaults": True}
 
     id: Mapped[uuid.UUID] = _uuid_pk()
-    category_id: Mapped[uuid.UUID | None] = mapped_column(
-        ForeignKey("material_categories.id", ondelete="RESTRICT")
-    )
     name: Mapped[str] = mapped_column(Text, nullable=False)
     topic: Mapped[str | None] = mapped_column(Text)  # تاپیک جلوی برنامه (Persian) — legacy
     canonical_unit_id: Mapped[int] = mapped_column(
@@ -149,7 +146,6 @@ class Material(Base):
         DateTime(timezone=True), nullable=False, server_default=func.now(), onupdate=func.now()
     )
 
-    category: Mapped["MaterialCategory | None"] = relationship(lazy="raise")
     canonical_unit: Mapped["Unit"] = relationship(lazy="raise")
     attribute_values: Mapped[list["MaterialAttributeValue"]] = relationship(
         back_populates="material", lazy="raise", passive_deletes=True

backend/app/models/project_transfer.py

@@ -0,0 +1,87 @@
+import uuid
+from datetime import datetime
+from decimal import Decimal
+
+from sqlalchemy import (
+    DateTime,
+    ForeignKey,
+    Numeric,
+    Text,
+    func,
+    text,
+)
+from sqlalchemy.dialects.postgresql import JSONB
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.db.base import Base
+from app.models.catalog import _timestamptz, _uuid_pk
+
+
+class ProjectTransfer(Base):
+    """project_transfers — Inter-project (inter-site) material transfer ledger.
+
+    Records the movement of materials from a source project warehouse to a
+    destination project. Stock is deducted from the source warehouse immediately
+    upon creation (status = 'in_transit') via out_transaction_id.
+    When the destination project PM confirms receipt in 'Arrivals', stock is
+    added to the destination warehouse (status = 'received').
+    While 'in_transit', the transfer can be edited or cancelled (restoring source stock).
+    Once 'received', the transfer is permanently locked from edit or cancellation.
+    """
+
+    __tablename__ = "project_transfers"
+    __mapper_args__ = {"eager_defaults": True}
+
+    id: Mapped[uuid.UUID] = _uuid_pk()
+    from_project_id: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("projects.id", ondelete="RESTRICT"), nullable=False
+    )
+    from_warehouse_id: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("warehouses.id", ondelete="RESTRICT"), nullable=False
+    )
+    to_project_id: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("projects.id", ondelete="RESTRICT"), nullable=False
+    )
+    material_id: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("materials.id", ondelete="RESTRICT"), nullable=False
+    )
+    brand_id: Mapped[uuid.UUID | None] = mapped_column(
+        ForeignKey("brands.id", ondelete="SET NULL")
+    )
+    unit_id: Mapped[int] = mapped_column(
+        ForeignKey("units.id", ondelete="RESTRICT"), nullable=False
+    )
+    quantity: Mapped[Decimal] = mapped_column(Numeric(18, 6), nullable=False)
+    specs: Mapped[dict] = mapped_column(JSONB, nullable=False, server_default=text("'{}'::jsonb"))
+    specs_hash: Mapped[str] = mapped_column(Text, nullable=False, server_default=text("'default'"))
+    note: Mapped[str | None] = mapped_column(Text)
+    status: Mapped[str] = mapped_column(Text, nullable=False, server_default=text("'in_transit'"))
+
+    out_transaction_id: Mapped[uuid.UUID | None] = mapped_column(
+        ForeignKey("inventory_transactions.id", ondelete="SET NULL")
+    )
+    transfer_date: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), nullable=False, server_default=func.now()
+    )
+    transferred_by: Mapped[str | None] = mapped_column(Text)
+    received_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    received_by: Mapped[str | None] = mapped_column(Text)
+    to_warehouse_id: Mapped[uuid.UUID | None] = mapped_column(
+        ForeignKey("warehouses.id", ondelete="SET NULL")
+    )
+    receipt_allocations: Mapped[list | None] = mapped_column(JSONB)
+    created_at: Mapped[datetime] = _timestamptz()
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), nullable=False, server_default=func.now(), onupdate=func.now()
+    )
+
+    from_project: Mapped["Project"] = relationship("Project", foreign_keys=[from_project_id], lazy="raise")
+    to_project: Mapped["Project"] = relationship("Project", foreign_keys=[to_project_id], lazy="raise")
+    from_warehouse: Mapped["Warehouse"] = relationship("Warehouse", foreign_keys=[from_warehouse_id], lazy="raise")
+    to_warehouse: Mapped["Warehouse | None"] = relationship("Warehouse", foreign_keys=[to_warehouse_id], lazy="raise")
+    material: Mapped["Material"] = relationship("Material", foreign_keys=[material_id], lazy="raise")
+    brand: Mapped["Brand | None"] = relationship("Brand", foreign_keys=[brand_id], lazy="raise")
+    unit: Mapped["Unit"] = relationship("Unit", foreign_keys=[unit_id], lazy="raise")
+    out_transaction: Mapped["InventoryTransaction | None"] = relationship(
+        "InventoryTransaction", foreign_keys=[out_transaction_id], lazy="raise"
+    )

backend/app/routers/__init__.py

@@ -4,8 +4,6 @@ from app.routers import (
     auth,
     brand_materials,
     brands,
-    category_attributes,
-    category_ref_units,
     files,
     inventory,
     item_decisions,
@@ -16,6 +14,7 @@ from app.routers import (
     material_categories,
     materials,
     pm,
+    project_transfers,
     projects,
     quote_events,
     quotes,
@@ -24,7 +23,6 @@ from app.routers import (
     supplier_materials,
     suppliers,
     termsheets,
-    unit_conversions,
     units,
     users,
 )
@@ -35,7 +33,6 @@ ROUTERS = [
     brands.router,
     material_categories.router,
     attribute_definitions.router,
-    category_attributes.router,
     materials.router,
     brand_materials.router,
     suppliers.router,
@@ -51,10 +48,9 @@ ROUTERS = [
     item_receipts.router,
     quote_events.router,
     files.router,
-    category_ref_units.router,
-    unit_conversions.router,
     standard_conversions.router,
     inventory.router,
     pm.router,
+    project_transfers.router,
     users.router,
 ]

backend/app/routers/category_attributes.py

@@ -1,136 +0,0 @@
-"""Category attributes — scoped attribute definitions per category (P2 set).
-
-Identified by composite key {category_id}/{attribute_definition_id}.
-The nested `attribute` object is ALWAYS included (not expand-based).
-"""
-from fastapi import APIRouter, Depends, Query
-from sqlalchemy import select
-from sqlalchemy.ext.asyncio import AsyncSession
-
-from app.db.engine import get_db
-from app.models.catalog import AttributeDefinition, CategoryAttribute, MaterialCategory
-from app.schemas.catalog import CategoryAttributeCreate, CategoryAttributeUpdate
-from app.utils.errors import ConflictError, NotFoundError
-from app.utils.pagination import paginate
-
-router = APIRouter(
-    prefix="/material-categories/{category_id}/attributes",
-    tags=["category-attributes"],
-)
-
-
-def ca_to_dict(ca: CategoryAttribute, attribute: AttributeDefinition) -> dict:
-    return {
-        "id": str(ca.id),
-        "category_id": str(ca.category_id),
-        "attribute_definition_id": str(ca.attribute_definition_id),
-        "is_required": ca.is_required,
-        "is_filterable": ca.is_filterable,
-        "conditional_rules": ca.conditional_rules,
-        "sort_order": ca.sort_order,
-        "attribute": {
-            "attribute_key": attribute.attribute_key,
-            "label": attribute.label,
-            "data_type": attribute.data_type,
-            "unit_id": attribute.unit_id,
-            "enum_values": attribute.enum_values,
-        },
-    }
-
-
-async def _category_or_404(db: AsyncSession, category_id) -> MaterialCategory:
-    category = await db.get(MaterialCategory, category_id)
-    if category is None:
-        raise NotFoundError("دسته‌بندی یافت نشد")
-    return category
-
-
-async def _with_attribute(db: AsyncSession, ca: CategoryAttribute) -> dict:
-    attribute = await db.get(AttributeDefinition, ca.attribute_definition_id)
-    return ca_to_dict(ca, attribute)
-
-
-@router.get("")
-async def list_category_attributes(
-    category_id,
-    page: int = Query(1, ge=1),
-    page_size: int = Query(20, ge=1, le=100),
-    db: AsyncSession = Depends(get_db),
-):
-    await _category_or_404(db, category_id)
-    stmt = (
-        select(CategoryAttribute)
-        .where(CategoryAttribute.category_id == category_id)
-        .order_by(CategoryAttribute.sort_order.asc())
-    )
-    items, meta = await paginate(stmt, page, page_size, db)
-    return {"data": [await _with_attribute(db, ca) for ca in items], "meta": meta}
-
-
-@router.post("", status_code=201)
-async def create_category_attribute(
-    category_id, payload: CategoryAttributeCreate, db: AsyncSession = Depends(get_db)
-):
-    await _category_or_404(db, category_id)
-    if await db.get(AttributeDefinition, payload.attribute_definition_id) is None:
-        raise NotFoundError("تعریف ویژگی یافت نشد", field="attribute_definition_id")
-    duplicate = await db.scalar(
-        select(CategoryAttribute.id).where(
-            CategoryAttribute.category_id == category_id,
-            CategoryAttribute.attribute_definition_id == payload.attribute_definition_id,
-        )
-    )
-    if duplicate is not None:
-        raise ConflictError("این ویژگی قبلاً به این دسته‌بندی اضافه شده است", field="attribute_definition_id")
-    ca = CategoryAttribute(
-        category_id=category_id,
-        attribute_definition_id=payload.attribute_definition_id,
-        is_required=payload.is_required,
-        is_filterable=payload.is_filterable,
-        conditional_rules=payload.conditional_rules,
-        sort_order=payload.sort_order,
-    )
-    db.add(ca)
-    await db.flush()
-    return {"data": await _with_attribute(db, ca)}
-
-
-@router.patch("/{attribute_definition_id}")
-async def update_category_attribute(
-    category_id, attribute_definition_id, payload: CategoryAttributeUpdate, db: AsyncSession = Depends(get_db)
-):
-    ca = await db.scalar(
-        select(CategoryAttribute).where(
-            CategoryAttribute.category_id == category_id,
-            CategoryAttribute.attribute_definition_id == attribute_definition_id,
-        )
-    )
-    if ca is None:
-        raise NotFoundError("ویژگی این دسته‌بندی یافت نشد")
-    if payload.is_required is not None:
-        ca.is_required = payload.is_required
-    if payload.is_filterable is not None:
-        ca.is_filterable = payload.is_filterable
-    if payload.conditional_rules is not None:
-        ca.conditional_rules = payload.conditional_rules
-    if payload.sort_order is not None:
-        ca.sort_order = payload.sort_order
-    await db.flush()
-    return {"data": await _with_attribute(db, ca)}
-
-
-@router.delete("/{attribute_definition_id}")
-async def delete_category_attribute(
-    category_id, attribute_definition_id, db: AsyncSession = Depends(get_db)
-):
-    ca = await db.scalar(
-        select(CategoryAttribute).where(
-            CategoryAttribute.category_id == category_id,
-            CategoryAttribute.attribute_definition_id == attribute_definition_id,
-        )
-    )
-    if ca is None:
-        raise NotFoundError("ویژگی این دسته‌بندی یافت نشد")
-    await db.delete(ca)
-    await db.flush()
-    return {"data": {"deleted": True}}

backend/app/routers/category_ref_units.py

@@ -1,69 +0,0 @@
-"""Category reference units — units.html dashboard (P2-26/27).
-
-One reference unit per category (UNIQUE category_id); PUT is an upsert.
-"""
-from fastapi import APIRouter, Depends, Query
-from sqlalchemy import select
-from sqlalchemy.ext.asyncio import AsyncSession
-
-from app.db.engine import get_db
-from app.models.catalog import CategoryReferenceUnit, MaterialCategory
-from app.schemas.catalog import CategoryReferenceUnitPut
-from app.services.expand_service import category_brief
-from app.utils.errors import NotFoundError
-from app.utils.pagination import paginate
-from app.utils.serialization import to_iso
-
-router = APIRouter(prefix="/category-reference-units", tags=["category-reference-units"])
-
-
-def cru_to_dict(cru: CategoryReferenceUnit, expand: set[str] = frozenset()) -> dict:
-    d = {
-        "id": str(cru.id),
-        "category_id": str(cru.category_id),
-        "ref_unit": cru.ref_unit,
-        "updated_at": to_iso(cru.updated_at),
-    }
-    if "category" in expand and hasattr(cru, "_category"):
-        d["category"] = category_brief(cru._category)
-    return d
-
-
-@router.get("")
-async def list_category_reference_units(
-    page: int = Query(1, ge=1),
-    page_size: int = Query(20, ge=1, le=100),
-    category_id=None,
-    expand: str | None = None,
-    db: AsyncSession = Depends(get_db),
-):
-    stmt = select(CategoryReferenceUnit)
-    if category_id:
-        stmt = stmt.where(CategoryReferenceUnit.category_id == category_id)
-    items, meta = await paginate(stmt, page, page_size, db)
-    tokens = {t.strip() for t in expand.split(",")} if expand else set()
-    if "category" in tokens:
-        cat_ids = {cru.category_id for cru in items}
-        cats = {}
-        if cat_ids:
-            cats = {c.id: c for c in (await db.execute(select(MaterialCategory).where(MaterialCategory.id.in_(cat_ids)))).scalars()}
-        for cru in items:
-            cru._category = cats.get(cru.category_id)
-    return {"data": [cru_to_dict(cru, tokens) for cru in items], "meta": meta}
-
-
-@router.put("/{category_id}")
-async def upsert_category_reference_unit(
-    category_id, payload: CategoryReferenceUnitPut, db: AsyncSession = Depends(get_db)
-):
-    category = await db.get(MaterialCategory, category_id)
-    if category is None:
-        raise NotFoundError("دسته‌بندی یافت نشد")
-    cru = await db.scalar(select(CategoryReferenceUnit).where(CategoryReferenceUnit.category_id == category_id))
-    if cru is None:
-        cru = CategoryReferenceUnit(category_id=category_id, ref_unit=payload.ref_unit)
-        db.add(cru)
-    else:
-        cru.ref_unit = payload.ref_unit
-    await db.flush()
-    return {"data": {"category_id": str(category_id), "ref_unit": cru.ref_unit}}

backend/app/routers/files.py

@@ -17,14 +17,15 @@ import os
 import uuid
 from urllib.parse import quote
 
-from fastapi import APIRouter, Depends, File, Response, UploadFile
+from fastapi import APIRouter, Depends, File, Request, Response, UploadFile
 from sqlalchemy.ext.asyncio import AsyncSession
 
-from app.auth import require_role
+from app.auth import UserContext, get_current_user, get_optional_user, require_role
 from app.db.engine import get_db
 from app.models.procurement import Quote
 from app.services import file_service
-from app.utils.errors import NotFoundError, ValidationError
+from app.utils.errors import NotFoundError, UnauthorizedError, ValidationError
+from app.utils.preview_token import make_preview_token, verify_preview_token
 
 router = APIRouter(prefix="/quotes", tags=["files"])
 
@@ -41,13 +42,17 @@ ALLOWED_EXTENSIONS = {".png", ".jpg", ".jpeg", ".webp", ".gif", ".pdf"}
 MAX_FILE_SIZE_BYTES = 5 * 1024 * 1024
 
 
-def _content_disposition(file_name: str) -> str:
+def _content_disposition(file_name: str, inline: bool = False) -> str:
     """Header-safe Content-Disposition for non-ASCII (e.g. Persian) filenames.
 
     HTTP headers are encoded as latin-1, so a Persian name raises
     UnicodeEncodeError and kills the response. Per RFC 6266 / RFC 5987 the
     UTF-8 name goes percent-encoded in ``filename*``, with an ASCII fallback
     in ``filename`` for old clients.
+
+    ``inline=True`` makes the browser render the file (PDF in a viewer,
+    image in the tab) instead of downloading it — required by the preview
+    modal, whose <iframe> would otherwise trigger a download.
     """
     raw = file_name.encode("ascii", "ignore").decode("ascii")
     # keep the fallback header-safe: no quotes, no control characters
@@ -56,9 +61,37 @@ def _content_disposition(file_name: str) -> str:
     stem = fallback[: -len(ext)].strip() if ext and fallback.lower().endswith(ext.lower()) else fallback
     if not stem or not any(ch.isalnum() for ch in stem):
         # nothing meaningful survived ASCII-folding (e.g. a pure-Persian
-        # name): use a generic attachment name that keeps the extension
-        fallback = f"attachment{ext}" if ext else "attachment"
-    return f"attachment; filename=\"{fallback}\"; filename*=UTF-8''{quote(file_name)}"
+        # name): use a generic name that keeps the extension
+        fallback = f"{'preview' if inline else 'attachment'}{ext}" if ext else (
+            "preview" if inline else "attachment"
+        )
+    kind = "inline" if inline else "attachment"
+    return f"{kind}; filename=\"{fallback}\"; filename*=UTF-8''{quote(file_name)}"
+
+
+async def _require_file_access(
+    request: Request,
+    token: str | None,
+    quote_id: uuid.UUID,
+    kind: str,
+    attachment_id: uuid.UUID,
+    db: AsyncSession,
+) -> None:
+    """Authorise a file read by session header OR a signed ``?t=`` token.
+
+    These two GET routes sit outside the global Bearer dependency because a
+    browser cannot attach an Authorization header to <iframe>/<img> loads.
+    A caller is accepted when it presents either a valid Casdoor session
+    (resolved by get_optional_user) or a signed token scoped to exactly
+    this file, which expires within minutes.
+    """
+    if request is not None and request.headers.get("authorization"):
+        user = await get_optional_user(request, db)
+        if user is not None and user.role is not None:
+            return
+    if token and verify_preview_token(token, quote_id, kind, attachment_id):
+        return
+    raise UnauthorizedError("دسترسی به این فایل مجاز نیست — ابتدا وارد شوید")
 
 
 async def _quote_or_404(db: AsyncSession, quote_id: uuid.UUID) -> Quote:
@@ -92,7 +125,7 @@ async def _attachment_or_404(
 # Invoice — قابل بارگذاری در هر وضعیتی (از صفحه‌ی ویرایش)
 # ---------------------------------------------------------------------------
 
-@router.post("/{quote_id}/invoice", status_code=201)
+@router.post("/{quote_id}/invoice", status_code=201, dependencies=[Depends(get_current_user)])
 async def upload_invoice(quote_id: uuid.UUID, file: UploadFile = File(...), db: AsyncSession = Depends(get_db)):
     await _quote_or_404(db, quote_id)
     mime = _validate_upload(file)
@@ -103,29 +136,67 @@ async def upload_invoice(quote_id: uuid.UUID, file: UploadFile = File(...), db:
     return {"data": stored.to_dict()}
 
 
-@router.get("/{quote_id}/invoice")
+@router.get("/{quote_id}/invoice", dependencies=[Depends(get_current_user)])
 async def list_invoices(quote_id: uuid.UUID, db: AsyncSession = Depends(get_db)):
     await _quote_or_404(db, quote_id)
     attachments = await file_service.list_for(db, quote_id, "invoice")
     return {"data": [a.to_dict() for a in attachments]}
 
 
+# ---------------------------------------------------------------------------
+# Preview URL — a real, short-lived URL the browser can load in an
+# <iframe>/<img> (which cannot send an Authorization header). Using a real
+# URL instead of a blob: avoids download managers that hijack blob URLs and
+# leave 0-byte files behind.
+# ---------------------------------------------------------------------------
+@router.get("/{quote_id}/preview-url/{kind}/{attachment_id}")
+async def preview_url(
+    quote_id: uuid.UUID,
+    kind: str,
+    attachment_id: uuid.UUID,
+    db: AsyncSession = Depends(get_db),
+    _ctx: UserContext = Depends(get_current_user),
+):
+    if kind not in ("invoice", "proforma"):
+        raise ValidationError("نوع پیوست نامعتبر است", field="kind")
+    await _quote_or_404(db, quote_id)
+    await _attachment_or_404(db, quote_id, attachment_id, kind)
+    token = make_preview_token(quote_id, kind, attachment_id)
+    # مسیر نسبی برگردانده می‌شود؛ فرانت با BASE_URL خودش کاملش می‌کند
+    return {
+        "data": {
+            "url": f"/quotes/{quote_id}/{kind}/{attachment_id}?disposition=inline&t={token}",
+            "token": token,
+        }
+    }
+
+
 @router.get("/{quote_id}/invoice/{attachment_id}")
-async def download_invoice(quote_id: uuid.UUID, attachment_id: uuid.UUID, db: AsyncSession = Depends(get_db)):
+async def download_invoice(
+    quote_id: uuid.UUID,
+    attachment_id: uuid.UUID,
+    disposition: str = "attachment",
+    t: str | None = None,
+    request: Request = None,
+    db: AsyncSession = Depends(get_db),
+):
     await _quote_or_404(db, quote_id)
     attachment = await _attachment_or_404(db, quote_id, attachment_id, "invoice")
+    await _require_file_access(request, t, quote_id, "invoice", attachment_id, db)
     content = await file_service.read_bytes(attachment)
     return Response(
         content=content,
         media_type=attachment.mime_type,
         headers={
-            "Content-Disposition": _content_disposition(attachment.file_name),
+            "Content-Disposition": _content_disposition(
+                attachment.file_name, inline=disposition == "inline"
+            ),
             "X-File-Id": str(attachment.id),
         },
     )
 
 
-@router.delete("/{quote_id}/invoice/{attachment_id}", dependencies=[Depends(_attachment_deleter)])
+@router.delete("/{quote_id}/invoice/{attachment_id}", dependencies=[Depends(_attachment_deleter), Depends(get_current_user)])
 async def delete_invoice(quote_id: uuid.UUID, attachment_id: uuid.UUID, db: AsyncSession = Depends(get_db)):
     await _quote_or_404(db, quote_id)
     attachment = await _attachment_or_404(db, quote_id, attachment_id, "invoice")
@@ -137,7 +208,7 @@ async def delete_invoice(quote_id: uuid.UUID, attachment_id: uuid.UUID, db: Asyn
 # Proforma — no status restriction
 # ---------------------------------------------------------------------------
 
-@router.post("/{quote_id}/proforma", status_code=201)
+@router.post("/{quote_id}/proforma", status_code=201, dependencies=[Depends(get_current_user)])
 async def upload_proforma(quote_id: uuid.UUID, file: UploadFile = File(...), db: AsyncSession = Depends(get_db)):
     await _quote_or_404(db, quote_id)
     mime = _validate_upload(file)
@@ -148,7 +219,7 @@ async def upload_proforma(quote_id: uuid.UUID, file: UploadFile = File(...), db:
     return {"data": stored.to_dict()}
 
 
-@router.get("/{quote_id}/proforma")
+@router.get("/{quote_id}/proforma", dependencies=[Depends(get_current_user)])
 async def list_proformas(quote_id: uuid.UUID, db: AsyncSession = Depends(get_db)):
     await _quote_or_404(db, quote_id)
     attachments = await file_service.list_for(db, quote_id, "proforma")
@@ -156,21 +227,31 @@ async def list_proformas(quote_id: uuid.UUID, db: AsyncSession = Depends(get_db)
 
 
 @router.get("/{quote_id}/proforma/{attachment_id}")
-async def download_proforma(quote_id: uuid.UUID, attachment_id: uuid.UUID, db: AsyncSession = Depends(get_db)):
+async def download_proforma(
+    quote_id: uuid.UUID,
+    attachment_id: uuid.UUID,
+    disposition: str = "attachment",
+    t: str | None = None,
+    request: Request = None,
+    db: AsyncSession = Depends(get_db),
+):
     await _quote_or_404(db, quote_id)
     attachment = await _attachment_or_404(db, quote_id, attachment_id, "proforma")
+    await _require_file_access(request, t, quote_id, "proforma", attachment_id, db)
     content = await file_service.read_bytes(attachment)
     return Response(
         content=content,
         media_type=attachment.mime_type,
         headers={
-            "Content-Disposition": _content_disposition(attachment.file_name),
+            "Content-Disposition": _content_disposition(
+                attachment.file_name, inline=disposition == "inline"
+            ),
             "X-File-Id": str(attachment.id),
         },
     )
 
 
-@router.delete("/{quote_id}/proforma/{attachment_id}", dependencies=[Depends(_attachment_deleter)])
+@router.delete("/{quote_id}/proforma/{attachment_id}", dependencies=[Depends(_attachment_deleter), Depends(get_current_user)])
 async def delete_proforma(quote_id: uuid.UUID, attachment_id: uuid.UUID, db: AsyncSession = Depends(get_db)):
     await _quote_or_404(db, quote_id)
     attachment = await _attachment_or_404(db, quote_id, attachment_id, "proforma")

backend/app/routers/inventory.py

@@ -274,12 +274,13 @@ async def update_warehouse(
         wh.name = payload.name
     if payload.description is not None:
         wh.description = payload.description
+    # پروژه‌ی انبار تغییرناپذیر است — انبار برای همیشه به پروژه‌ی والدش تعلق
+    # دارد و فقط با حذف و ساخت دوباره می‌تواند جابه‌جا شود.
     if payload.project_id is not None and str(payload.project_id) != str(wh.project_id):
-        if await db.get(Project, payload.project_id) is None:
-            raise NotFoundError("پروژه مقصد یافت نشد", field="project_id")
-        if scope.role == ROLE_PM and payload.project_id != scope.project_id:
-            raise ForbiddenError("PM فقط می‌تواند انبار را در پروژه خودش جابه‌جا کند", field="project_id")
-        wh.project_id = payload.project_id
+        raise ValidationError(
+            "پروژه‌ی انبار قابل تغییر نیست — انبار برای همیشه به پروژه‌ی والدش تعلق دارد",
+            field="project_id",
+        )
     await db.flush()
     return {"data": warehouse_to_dict(wh, await db.get(Project, wh.project_id))}
 
@@ -313,7 +314,6 @@ async def delete_warehouse(
 @router.get("")
 async def list_inventory(
     project_id: uuid.UUID | None = None,
-    category_id=None,
     warehouse_id=None,
     material_id=None,
     sort: str | None = None,
@@ -331,10 +331,6 @@ async def list_inventory(
         stmt = stmt.join(Warehouse, Warehouse.id == InventoryItem.warehouse_id).where(
             Warehouse.project_id == project_id
         )
-    if category_id is not None:
-        stmt = stmt.join(Material, Material.id == InventoryItem.material_id).where(
-            Material.category_id == category_id
-        )
     if warehouse_id is not None:
         stmt = stmt.where(InventoryItem.warehouse_id == warehouse_id)
     if material_id is not None:
@@ -356,10 +352,6 @@ async def _serialize_inventory_rows(db: AsyncSession, items: list[InventoryItem]
     unit_ids = {i.unit_id for i in items}
     warehouses = {w.id: w for w in (await db.execute(select(Warehouse).where(Warehouse.id.in_(wh_ids)))).scalars()}
     materials = {m.id: m for m in (await db.execute(select(Material).where(Material.id.in_(mat_ids)))).scalars()}
-    categories = {}
-    if materials:
-        cat_ids = {m.category_id for m in materials.values()}
-        categories = {c.id: c for c in (await db.execute(select(MaterialCategory).where(MaterialCategory.id.in_(cat_ids)))).scalars()}
     brands = {}
     if brand_ids:
         brands = {b.id: b for b in (await db.execute(select(Brand).where(Brand.id.in_(brand_ids)))).scalars()}
@@ -369,7 +361,7 @@ async def _serialize_inventory_rows(db: AsyncSession, items: list[InventoryItem]
     return [
         inventory_to_dict(
             i, warehouses[i.warehouse_id], materials[i.material_id],
-            categories.get(materials[i.material_id].category_id), brands.get(i.brand_id), units.get(i.unit_id),
+            None, brands.get(i.brand_id), units.get(i.unit_id),
         )
         for i in items
     ]
@@ -531,58 +523,3 @@ async def transaction_types():
         "PURCHASE", "WITHDRAWAL", "RETURN", "TRANSFER_IN", "TRANSFER_OUT",
         "DAMAGE", "WASTE", "LOSS", "FOUND", "STOCK_COUNT",
     )]}
-
-
-# ---------------------------------------------------------------------------
-# Material selector — filtered by Category + Warehouse (transaction forms)
-# ---------------------------------------------------------------------------
-
-@router.get("/materials/options")
-async def material_options(
-    category_id: uuid.UUID,
-    warehouse_id: uuid.UUID | None = None,
-    scope: Scope = Depends(inventory_scope),
-    db: AsyncSession = Depends(get_db),
-):
-    """Materials for the transaction form.
-
-    Always filtered by category. When `warehouse_id` is given, only materials
-    that already exist in that warehouse's inventory are returned (so the PM
-    works with the actual stock of that warehouse); otherwise the full
-    category list is returned (e.g. first purchase of a new material).
-    """
-    category = await db.get(MaterialCategory, category_id)
-    if category is None:
-        raise NotFoundError("دسته‌بندی یافت نشد", field="category_id")
-
-    stmt = select(Material).where(Material.category_id == category_id, Material.status == "active")
-    if warehouse_id is not None:
-        wh = await get_warehouse_or_404(db, warehouse_id)
-        if scope.role == ROLE_PM and wh.project_id != scope.project_id:
-            raise ForbiddenError("این انبار متعلق به پروژه شما نیست")
-        stmt = stmt.where(
-            Material.id.in_(
-                select(InventoryItem.material_id).where(InventoryItem.warehouse_id == warehouse_id)
-            )
-        )
-    stmt = stmt.order_by(Material.name)
-    materials = (await db.execute(stmt)).scalars().all()
-
-    # Brands per material (from brand_materials catalog + brands actually used in stock)
-    brand_rows = (await db.execute(
-        select(BrandMaterial.material_id, Brand.id, Brand.name)
-        .join(Brand, Brand.id == BrandMaterial.brand_id)
-        .where(BrandMaterial.material_id.in_([m.id for m in materials]), BrandMaterial.is_active.is_(True))
-    )).all()
-    brands_by_material: dict[str, list[dict]] = {}
-    for mat_id, b_id, b_name in brand_rows:
-        brands_by_material.setdefault(str(mat_id), []).append({"id": str(b_id), "name": b_name})
-
-    return {"data": [
-        {
-            "id": str(m.id),
-            "name": m.name,
-            "brands": brands_by_material.get(str(m.id), []),
-        }
-        for m in materials
-    ]}

backend/app/routers/material_categories.py

@@ -4,7 +4,8 @@ from sqlalchemy import func, or_, select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.db.engine import get_db
-from app.models.catalog import Material, MaterialCategory
+from app.models.catalog import MaterialCategory
+from app.models.procurement import Supplier
 from app.schemas.catalog import MaterialCategoryCreate, MaterialCategoryUpdate
 from app.utils.errors import ConflictError, NotFoundError
 from app.utils.pagination import paginate, sort_query
@@ -95,10 +96,14 @@ async def delete_category(category_id, db: AsyncSession = Depends(get_db)):
     category = await db.get(MaterialCategory, category_id)
     if category is None:
         raise NotFoundError("دسته‌بندی یافت نشد")
-    # materials.category_id is ON DELETE RESTRICT — block if any material exists.
-    linked = await db.scalar(select(func.count()).select_from(Material).where(Material.category_id == category_id))
+    # v2.7: materials no longer carry a category, so what blocks deletion is the
+    # supplier side — suppliers.category_id is ON DELETE RESTRICT. Every
+    # material of that category is reached through those suppliers.
+    linked = await db.scalar(
+        select(func.count()).select_from(Supplier).where(Supplier.category_id == category_id)
+    )
     if linked:
-        raise ConflictError(f"این دسته‌بندی شامل {linked} متریال است و قابل حذف نیست")
+        raise ConflictError(f"این دسته‌بندی برای {linked} تأمین‌کننده ثبت شده و قابل حذف نیست")
     await db.delete(category)  # category_attributes cascade via DDL
     await db.flush()
     return {"data": {"id": str(category_id), "deleted": True}}

backend/app/routers/materials.py

@@ -97,7 +97,6 @@ async def _apply_attr_filters(db: AsyncSession, stmt, request: Request):
 async def list_materials(
     page: int = Query(1, ge=1),
     page_size: int = Query(20, ge=1, le=100),
-    category_id=None,
     brand_id=None,
     status: str | None = None,
     q: str | None = None,
@@ -107,8 +106,6 @@ async def list_materials(
     db: AsyncSession = Depends(get_db),
 ):
     stmt = select(Material)
-    if category_id:
-        stmt = stmt.where(Material.category_id == category_id)
     if brand_id:
         # WHERE EXISTS brand_materials with that brand_id
         sub = select(1).where(

backend/app/routers/pm.py

@@ -38,7 +38,7 @@ from sqlalchemy.ext.asyncio import AsyncSession
 from app.auth import UserContext, get_optional_user
 from app.config import settings
 from app.db.engine import get_db
-from app.models.catalog import BrandMaterial, Material, MaterialCategory, Unit
+from app.models.catalog import BrandMaterial, Material, Unit
 from app.models.inventory import InventoryItem, InventoryTransaction, Warehouse
 from app.models.procurement import (
     ItemDecision,
@@ -201,18 +201,6 @@ async def pm_on_the_way(
     # unit / category lookups for display
     unit_ids = {d.LineItem.unit_id for d in decisions}
     units = {u.id: u for u in (await db.execute(select(Unit).where(Unit.id.in_(unit_ids)))).scalars()}
-    mat_ids = {d.Material.id for d in decisions}
-    cats = {}
-    if mat_ids:
-        rows = (
-            await db.execute(
-                select(Material.id, MaterialCategory)
-                .join(MaterialCategory, MaterialCategory.id == Material.category_id)
-                .where(Material.id.in_(mat_ids))
-            )
-        ).all()
-        cats = {m_id: c for m_id, c in rows}
-
     out = []
     for d, li, q, m, sup, proj in decisions:
         received = received_map.get(d.id)
@@ -225,8 +213,7 @@ async def pm_on_the_way(
             "supplier": {"id": str(sup.id), "name": sup.name},
             "project": {"id": str(proj.id), "name": proj.name} if proj else None,
             "decided_at": to_iso(d.decided_at),
-            "material": {"id": str(m.id), "name": m.name,
-                         "category": {"id": str(c.id), "name": c.name} if (c := cats.get(m.id)) else None},
+            "material": {"id": str(m.id), "name": m.name},
             "unit": {"id": units[li.unit_id].id, "code": units[li.unit_id].code,
                      "name_fa": units[li.unit_id].name_fa} if li.unit_id in units else None,
             "ordered_qty": str(li.quantity),

backend/app/routers/project_transfers.py

@@ -0,0 +1,206 @@
+import uuid
+from typing import Literal
+
+from fastapi import APIRouter, Depends, Query, Request
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.db.engine import get_db
+from app.routers.pm import ArrivalScope, arrivals_scope
+from app.schemas.project_transfers import (
+    ProjectTransferCreate,
+    ProjectTransferOut,
+    ProjectTransferReceive,
+    ProjectTransferUpdate,
+)
+from app.services import project_transfer_service
+from app.utils.errors import ForbiddenError
+
+router = APIRouter(tags=["project-transfers"])
+
+
+def _to_transfer_out(t) -> dict:
+    return {
+        "id": t.id,
+        "from_project": (
+            {"id": t.from_project.id, "name": t.from_project.name}
+            if t.from_project
+            else {"id": t.from_project_id, "name": ""}
+        ),
+        "from_warehouse": (
+            {"id": t.from_warehouse.id, "name": t.from_warehouse.name}
+            if t.from_warehouse
+            else {"id": t.from_warehouse_id, "name": ""}
+        ),
+        "to_project": (
+            {"id": t.to_project.id, "name": t.to_project.name}
+            if t.to_project
+            else {"id": t.to_project_id, "name": ""}
+        ),
+        "to_warehouse": (
+            {"id": t.to_warehouse.id, "name": t.to_warehouse.name}
+            if t.to_warehouse
+            else None
+        ),
+        "material": (
+            {"id": t.material.id, "name": t.material.name}
+            if t.material
+            else {"id": t.material_id, "name": ""}
+        ),
+        "brand": (
+            {"id": t.brand.id, "name": t.brand.name}
+            if t.brand
+            else None
+        ),
+        "unit": (
+            {"id": t.unit.id, "code": t.unit.code, "name_fa": t.unit.name_fa}
+            if t.unit
+            else {"id": t.unit_id, "code": "", "name_fa": None}
+        ),
+        "quantity": t.quantity,
+        "specs": t.specs or {},
+        "specs_hash": t.specs_hash,
+        "note": t.note,
+        "status": t.status,
+        "transfer_date": t.transfer_date,
+        "transferred_by": t.transferred_by,
+        "received_at": t.received_at,
+        "received_by": t.received_by,
+        "receipt_allocations": t.receipt_allocations,
+        "created_at": t.created_at,
+        "updated_at": t.updated_at,
+    }
+
+
+# ---------------------------------------------------------------------------
+# POST /inventory/project-transfers — Create inter-project transfer
+# ---------------------------------------------------------------------------
+@router.post("/inventory/project-transfers", status_code=201)
+async def create_transfer(
+    payload: ProjectTransferCreate,
+    ctx: ArrivalScope = Depends(arrivals_scope),
+    db: AsyncSession = Depends(get_db),
+):
+    transfer = await project_transfer_service.create_project_transfer(
+        db=db,
+        payload=payload,
+        caller_project_id=ctx.project_id,
+        caller_role=ctx.role,
+        transferred_by=ctx.display_name,
+    )
+    return {"data": _to_transfer_out(transfer)}
+
+
+# ---------------------------------------------------------------------------
+# GET /inventory/project-transfers — List transfers with direction and filters
+# ---------------------------------------------------------------------------
+@router.get("/inventory/project-transfers")
+async def list_transfers(
+    project_id: uuid.UUID | None = Query(default=None),
+    direction: Literal["outgoing", "incoming", "all"] = Query(default="all"),
+    status: str | None = Query(default=None),
+    ctx: ArrivalScope = Depends(arrivals_scope),
+    db: AsyncSession = Depends(get_db),
+):
+    target_pid = project_id or ctx.project_id
+    transfers = await project_transfer_service.list_project_transfers(
+        db=db,
+        project_id=target_pid,
+        direction=direction,
+        status=status,
+    )
+    return {"data": [_to_transfer_out(t) for t in transfers]}
+
+
+# ---------------------------------------------------------------------------
+# GET /inventory/project-transfers/{id} — Single transfer details
+# ---------------------------------------------------------------------------
+@router.get("/inventory/project-transfers/{transfer_id}")
+async def get_transfer(
+    transfer_id: uuid.UUID,
+    ctx: ArrivalScope = Depends(arrivals_scope),
+    db: AsyncSession = Depends(get_db),
+):
+    transfer = await project_transfer_service.get_project_transfer_or_404(db, transfer_id)
+    if ctx.role == "pm" and ctx.project_id is not None:
+        if transfer.from_project_id != ctx.project_id and transfer.to_project_id != ctx.project_id:
+            raise ForbiddenError("شما به این رکورد انتقال دسترسی ندارید")
+    return {"data": _to_transfer_out(transfer)}
+
+
+# ---------------------------------------------------------------------------
+# PATCH /inventory/project-transfers/{id} — Edit in-transit transfer (source PM only)
+# ---------------------------------------------------------------------------
+@router.patch("/inventory/project-transfers/{transfer_id}")
+async def update_transfer(
+    transfer_id: uuid.UUID,
+    payload: ProjectTransferUpdate,
+    ctx: ArrivalScope = Depends(arrivals_scope),
+    db: AsyncSession = Depends(get_db),
+):
+    transfer = await project_transfer_service.update_project_transfer(
+        db=db,
+        transfer_id=transfer_id,
+        payload=payload,
+        caller_project_id=ctx.project_id,
+        caller_role=ctx.role,
+    )
+    return {"data": _to_transfer_out(transfer)}
+
+
+# ---------------------------------------------------------------------------
+# DELETE /inventory/project-transfers/{id} — Cancel in-transit transfer (source PM only)
+# ---------------------------------------------------------------------------
+@router.delete("/inventory/project-transfers/{transfer_id}")
+async def delete_transfer(
+    transfer_id: uuid.UUID,
+    ctx: ArrivalScope = Depends(arrivals_scope),
+    db: AsyncSession = Depends(get_db),
+):
+    res = await project_transfer_service.delete_project_transfer(
+        db=db,
+        transfer_id=transfer_id,
+        caller_project_id=ctx.project_id,
+        caller_role=ctx.role,
+    )
+    return {"data": res}
+
+
+# ---------------------------------------------------------------------------
+# GET /pm/transfers/on-the-way — Incoming in-transit transfers for active project
+# ---------------------------------------------------------------------------
+@router.get("/pm/transfers/on-the-way")
+async def pm_incoming_transfers(
+    ctx: ArrivalScope = Depends(arrivals_scope),
+    db: AsyncSession = Depends(get_db),
+):
+    if ctx.role == "pm" and ctx.project_id is None:
+        raise ForbiddenError("شما به هیچ پروژه‌ای متصل نیستید")
+
+    transfers = await project_transfer_service.list_project_transfers(
+        db=db,
+        project_id=ctx.project_id,
+        direction="incoming",
+        status="in_transit",
+    )
+    return {"data": [_to_transfer_out(t) for t in transfers]}
+
+
+# ---------------------------------------------------------------------------
+# POST /inventory/project-transfers/{id}/receive — Destination PM confirms arrival
+# ---------------------------------------------------------------------------
+@router.post("/inventory/project-transfers/{transfer_id}/receive")
+async def receive_transfer(
+    transfer_id: uuid.UUID,
+    payload: ProjectTransferReceive,
+    ctx: ArrivalScope = Depends(arrivals_scope),
+    db: AsyncSession = Depends(get_db),
+):
+    transfer = await project_transfer_service.receive_project_transfer(
+        db=db,
+        transfer_id=transfer_id,
+        payload=payload,
+        caller_project_id=ctx.project_id,
+        caller_role=ctx.role,
+        received_by=ctx.display_name,
+    )
+    return {"data": _to_transfer_out(transfer)}

backend/app/routers/quotes.py

@@ -10,7 +10,16 @@ from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.db.engine import get_db
 from app.models.catalog import Material
-from app.models.procurement import ItemDecision, LineItem, Project, Quote, Supplier, Termsheet
+from app.models.procurement import (
+    ItemDecision,
+    LineItem,
+    LineItemProjects,
+    Project,
+    Quote,
+    QuoteProjects,
+    Supplier,
+    Termsheet,
+)
 from app.schemas.procurement import (
     AcceptQuoteIn,
     ArriveItemsIn,
@@ -36,15 +45,6 @@ router = APIRouter(prefix="/quotes", tags=["quotes"])
 
 # --- list filter helpers ---------------------------------------------------
 
-def _quote_category_exists(category_id) -> exists:
-    return exists(
-        select(1).where(
-            LineItem.quote_id == Quote.id,
-            Material.id == LineItem.material_id,
-            Material.category_id == category_id,
-        )
-    )
-
 
 def _quote_search(q: str) -> exists:
     like = f"%{q}%"
@@ -72,7 +72,6 @@ async def get_quote_stats(
     project_id=None,
     quote_date_from: datetime | None = None,
     quote_date_to: datetime | None = None,
-    category_id=None,
     db: AsyncSession = Depends(get_db),
 ):
     return {
@@ -82,7 +81,6 @@ async def get_quote_stats(
             project_id=project_id,
             quote_date_from=quote_date_from,
             quote_date_to=quote_date_to,
-            category_id=category_id,
         )
     }
 
@@ -98,7 +96,6 @@ async def list_quotes(
     status: str | None = None,
     supplier_id=None,
     project_id=None,
-    category_id=None,
     quote_date_from: datetime | None = None,
     quote_date_to: datetime | None = None,
     q: str | None = None,
@@ -112,9 +109,23 @@ async def list_quotes(
     if supplier_id:
         stmt = stmt.where(Quote.supplier_id == supplier_id)
     if project_id:
-        stmt = stmt.where(Quote.project_id == project_id)
-    if category_id:
-        stmt = stmt.where(_quote_category_exists(category_id))
+        # any relevant link: legacy mirror, quote-level junction, line-item
+        # candidates, or an accepted (decision) target — NOT just the mirror
+        stmt = stmt.where(
+            Quote.id.in_(
+                select(Quote.id)
+                .outerjoin(QuoteProjects, QuoteProjects.quote_id == Quote.id)
+                .outerjoin(LineItem, LineItem.quote_id == Quote.id)
+                .outerjoin(LineItemProjects, LineItemProjects.line_item_id == LineItem.id)
+                .outerjoin(ItemDecision, ItemDecision.line_item_id == LineItem.id)
+                .where(
+                    (Quote.project_id == project_id)
+                    | (QuoteProjects.project_id == project_id)
+                    | (LineItemProjects.project_id == project_id)
+                    | (ItemDecision.project_id == project_id)
+                )
+            )
+        )
     if quote_date_from is not None:
         stmt = stmt.where(Quote.quote_date >= quote_date_from)
     if quote_date_to is not None:

backend/app/routers/supplier_materials.py

@@ -58,11 +58,7 @@ async def list_supplier_materials(
     items, meta = await paginate(stmt, page, page_size, db)
     mat_ids = {l.material_id for l in items}
     materials = {m.id: m for m in (await db.execute(select(Material).where(Material.id.in_(mat_ids)))).scalars()}
-    cat_ids = {m.category_id for m in materials.values() if m.category_id}
-    cats = {}
-    if cat_ids:
-        cats = {c.id: c for c in (await db.execute(select(MaterialCategory).where(MaterialCategory.id.in_(cat_ids)))).scalars()}
-    return {"data": [link_to_dict(l, materials.get(l.material_id), cats.get(materials.get(l.material_id).category_id if l.material_id in materials else None)) for l in items], "meta": meta}
+    return {"data": [link_to_dict(l, materials.get(l.material_id), None) for l in items], "meta": meta}
 
 
 @router.post("/suppliers/{supplier_id}/materials", status_code=201)
@@ -72,8 +68,7 @@ async def create_supplier_material(
     async with db.begin():
         link = await link_supplier_material(db, supplier_id, payload.material_id)
         material = await db.get(Material, payload.material_id)
-        category = await db.get(MaterialCategory, material.category_id) if material and material.category_id else None
-    return {"data": link_to_dict(link, material, category)}
+    return {"data": link_to_dict(link, material, None)}
 
 
 @router.delete("/suppliers/{supplier_id}/materials/{material_id}")

backend/app/routers/unit_conversions.py

@@ -1,146 +0,0 @@
-"""Unit conversions — category/brand-scoped (units.html dashboard, P2-28..31).
-
-Model: {category_id, brand?, from_unit, to_unit, factor}
-  1 from_unit = factor × to_unit
-  brand empty = all brands of the category; brand set = that brand only.
-"""
-from fastapi import APIRouter, Depends, Query
-from sqlalchemy import select
-from sqlalchemy.ext.asyncio import AsyncSession
-
-from app.db.engine import get_db
-from app.models.catalog import MaterialCategory, UnitConversion
-from app.schemas.catalog import UnitConversionCreate, UnitConversionUpdate
-from app.services.expand_service import category_brief
-from app.utils.errors import ConflictError, NotFoundError
-from app.utils.pagination import paginate
-from app.utils.serialization import to_iso
-
-router = APIRouter(prefix="/unit-conversions", tags=["unit-conversions"])
-
-
-def uc_to_dict(uc: UnitConversion, expand: set[str] = frozenset()) -> dict:
-    d = {
-        "id": str(uc.id),
-        "category_id": str(uc.category_id),
-        "brand": uc.brand,
-        "from_unit": uc.from_unit,
-        "to_unit": uc.to_unit,
-        "factor": float(uc.factor),
-        "updated_at": to_iso(uc.updated_at),
-    }
-    if "category" in expand and hasattr(uc, "_category"):
-        d["category"] = category_brief(uc._category)
-    return d
-
-
-def _duplicate_condition(uc_or_none, category_id, brand, from_unit, to_unit):
-    """Uniqueness treats NULL brand as a concrete value (matches the partial unique index)."""
-    where = (
-        UnitConversion.category_id == category_id,
-        UnitConversion.from_unit == from_unit,
-        UnitConversion.to_unit == to_unit,
-    )
-    # PG «IS» فقط با NULL معتبر است؛ برای برند مقداردار از «==» استفاده می‌شود
-    where = where + (UnitConversion.brand == brand if brand is not None else UnitConversion.brand.is_(None),)
-    if uc_or_none is not None:
-        where = where + (UnitConversion.id != uc_or_none.id,)
-    return where
-
-
-async def _check_duplicate(db: AsyncSession, exclude_id, category_id, brand, from_unit, to_unit) -> None:
-    duplicate = await db.scalar(
-        select(UnitConversion.id).where(*_duplicate_condition(exclude_id, category_id, brand, from_unit, to_unit))
-    )
-    if duplicate is not None:
-        raise ConflictError("این تبدیل قبلاً ثبت شده است")
-
-
-@router.get("")
-async def list_unit_conversions(
-    page: int = Query(1, ge=1),
-    page_size: int = Query(20, ge=1, le=100),
-    category_id=None,
-    brand: str | None = None,
-    from_unit: str | None = None,
-    to_unit: str | None = None,
-    expand: str | None = None,
-    db: AsyncSession = Depends(get_db),
-):
-    stmt = select(UnitConversion)
-    if category_id:
-        stmt = stmt.where(UnitConversion.category_id == category_id)
-    if brand:
-        stmt = stmt.where(UnitConversion.brand == brand)
-    if from_unit:
-        stmt = stmt.where(UnitConversion.from_unit == from_unit)
-    if to_unit:
-        stmt = stmt.where(UnitConversion.to_unit == to_unit)
-    items, meta = await paginate(stmt, page, page_size, db)
-    tokens = {t.strip() for t in expand.split(",")} if expand else set()
-    if "category" in tokens:
-        cat_ids = {uc.category_id for uc in items}
-        cats = {}
-        if cat_ids:
-            cats = {c.id: c for c in (await db.execute(select(MaterialCategory).where(MaterialCategory.id.in_(cat_ids)))).scalars()}
-        for uc in items:
-            uc._category = cats.get(uc.category_id)
-    return {"data": [uc_to_dict(uc, tokens) for uc in items], "meta": meta}
-
-
-@router.post("", status_code=201)
-async def create_unit_conversion(payload: UnitConversionCreate, db: AsyncSession = Depends(get_db)):
-    category = await db.get(MaterialCategory, payload.category_id)
-    if category is None:
-        raise NotFoundError("دسته‌بندی یافت نشد", field="category_id")
-    await _check_duplicate(db, None, payload.category_id, payload.brand, payload.from_unit, payload.to_unit)
-    uc = UnitConversion(
-        category_id=payload.category_id,
-        brand=payload.brand,
-        from_unit=payload.from_unit,
-        to_unit=payload.to_unit,
-        factor=payload.factor,
-    )
-    db.add(uc)
-    await db.flush()
-    return {"data": uc_to_dict(uc)}
-
-
-@router.get("/{uc_id}")
-async def get_unit_conversion(uc_id, db: AsyncSession = Depends(get_db)):
-    uc = await db.get(UnitConversion, uc_id)
-    if uc is None:
-        raise NotFoundError("تبدیل واحد یافت نشد")
-    return {"data": uc_to_dict(uc)}
-
-
-@router.patch("/{uc_id}")
-async def update_unit_conversion(uc_id, payload: UnitConversionUpdate, db: AsyncSession = Depends(get_db)):
-    uc = await db.get(UnitConversion, uc_id)
-    if uc is None:
-        raise NotFoundError("تبدیل واحد یافت نشد")
-    new_brand = payload.brand if payload.brand is not None else uc.brand
-    new_from = payload.from_unit if payload.from_unit is not None else uc.from_unit
-    new_to = payload.to_unit if payload.to_unit is not None else uc.to_unit
-    if payload.brand is not None or payload.from_unit is not None or payload.to_unit is not None:
-        await _check_duplicate(db, uc.id, uc.category_id, new_brand, new_from, new_to)
-    if payload.brand is not None:
-        uc.brand = payload.brand
-    if payload.from_unit is not None:
-        uc.from_unit = payload.from_unit
-    if payload.to_unit is not None:
-        uc.to_unit = payload.to_unit
-    if payload.factor is not None:
-        uc.factor = payload.factor
-    await db.flush()
-    return {"data": uc_to_dict(uc)}
-
-
-@router.delete("/{uc_id}")
-async def delete_unit_conversion(uc_id, db: AsyncSession = Depends(get_db)):
-    uc = await db.get(UnitConversion, uc_id)
-    if uc is None:
-        raise NotFoundError("تبدیل واحد یافت نشد")
-    await db.delete(uc)
-    await db.flush()
-    return {"data": {"deleted": True}}

backend/app/schemas/catalog.py

@@ -89,7 +89,6 @@ class MaterialAttributeIn(APIModel):
 
 
 class MaterialCreate(APIModel):
-    category_id: UUID | None = None  # v2.5: optional — derived from first linked supplier
     name: str = Field(min_length=1)
     topic: str | None = None  # تاپیک جلوی برنامه (Persian) — legacy
     canonical_unit_id: int

backend/app/schemas/inventory.py

@@ -30,6 +30,13 @@ class WarehouseCreate(APIModel):
 
 
 class WarehouseUpdate(APIModel):
+    """Rename/re-describe a warehouse.
+
+    `project_id` is accepted only to be rejected: a warehouse belongs
+    permanently to its parent project and cannot be reassigned (the router
+    answers 400 unless the value equals the current project).
+    """
+
     name: str | None = Field(default=None, min_length=1, max_length=255)
     description: str | None = None
     project_id: UUID | None = None

backend/app/schemas/procurement.py

@@ -37,7 +37,7 @@ class SupplierUpdate(APIModel):
 
 
 class SupplierMaterialCreate(APIModel):
-    """Link a global material to a supplier (derives materials.category_id)."""
+    """Link a global material to a supplier."""
 
     material_id: UUID
 
@@ -135,6 +135,11 @@ class AcceptTermsheetIn(APIModel):
     schedule_steps: list[ScheduleStepIn] = Field(min_length=1)
 
 
+class ProjectAllocationIn(APIModel):
+    project_id: UUID
+    quantity: Decimal = Field(gt=0, description="Allocated quantity for this project")
+
+
 class ItemDecisionIn(APIModel):
     line_item_id: UUID
     status: Literal["chosen", "rejected"]
@@ -142,6 +147,7 @@ class ItemDecisionIn(APIModel):
     adjusted_unit_price: Decimal | None = Field(default=None, gt=0)
     adjusted_notes: str | None = None
     project_id: UUID | None = Field(default=None, description="The ONE purchased project (v2.6 — required when the offer spans several projects)")
+    allocations: list[ProjectAllocationIn] = Field(default_factory=list, description="Multi-project split allocations for this line item")
 
 
 class ItemProjectsIn(APIModel):

backend/app/schemas/project_transfers.py

@@ -0,0 +1,74 @@
+from datetime import datetime
+from decimal import Decimal
+from uuid import UUID
+
+from pydantic import Field
+
+from app.schemas.common import APIModel
+
+
+class WarehouseAllocationIn(APIModel):
+    warehouse_id: UUID
+    quantity: Decimal = Field(gt=0)
+
+
+class ProjectTransferCreate(APIModel):
+    from_warehouse_id: UUID
+    to_project_id: UUID
+    material_id: UUID
+    brand_id: UUID | None = None
+    unit_id: int
+    quantity: Decimal = Field(gt=0)
+    specs: dict = Field(default_factory=dict)
+    note: str | None = None
+    transfer_date: datetime | None = None
+
+
+class ProjectTransferUpdate(APIModel):
+    to_project_id: UUID | None = None
+    quantity: Decimal | None = Field(default=None, gt=0)
+    note: str | None = None
+    transfer_date: datetime | None = None
+
+
+class ProjectTransferReceive(APIModel):
+    allocations: list[WarehouseAllocationIn] = Field(
+        min_length=1,
+        description="Warehouse allocations in destination project (sum must equal transfer quantity)",
+    )
+    received_at: datetime | None = None
+    note: str | None = None
+
+
+class IdNameOut(APIModel):
+    id: UUID
+    name: str
+
+
+class UnitBriefOut(APIModel):
+    id: int
+    code: str
+    name_fa: str | None = None
+
+
+class ProjectTransferOut(APIModel):
+    id: UUID
+    from_project: IdNameOut
+    from_warehouse: IdNameOut
+    to_project: IdNameOut
+    to_warehouse: IdNameOut | None = None
+    material: IdNameOut
+    brand: IdNameOut | None = None
+    unit: UnitBriefOut
+    quantity: Decimal
+    specs: dict
+    specs_hash: str
+    note: str | None = None
+    status: str
+    transfer_date: datetime
+    transferred_by: str | None = None
+    received_at: datetime | None = None
+    received_by: str | None = None
+    receipt_allocations: list[dict] | None = None
+    created_at: datetime
+    updated_at: datetime

backend/app/services/analytics.py

@@ -37,13 +37,14 @@ async def track(event: str, properties: dict[str, Any] | None = None, profile_id
     """Record a named event; swallows every error."""
     if not _configured():
         return
-    body = {
-        "type": "track",
-        "event": event,
-        "properties": properties or {},
-    }
+    # OpenPanel's Track API takes {type, payload:{…}} (same envelope the browser SDK
+    # sends) — a flat body is rejected with 400, which this module swallows by design.
+    # The payload field is "name" (ITrackPayload in packages/validation) — "event" is
+    # rejected with a 400 that this module swallows.
+    inner: dict[str, Any] = {"name": event, "properties": properties or {}}
     if profile_id:
-        body["profileId"] = profile_id
+        inner["profileId"] = profile_id
+    body = {"type": "track", "payload": inner}
     try:
         async with httpx.AsyncClient(timeout=_TIMEOUT) as client:
             await client.post(
@@ -66,7 +67,7 @@ async def identify(profile_id: str, properties: dict[str, Any] | None = None) ->
         async with httpx.AsyncClient(timeout=_TIMEOUT) as client:
             await client.post(
                 f"{settings.OPENPANEL_API_URL.rstrip('/')}/track",
-                json={"type": "identify", "profileId": profile_id, "properties": properties or {}},
+                json={"type": "identify", "payload": {"profileId": profile_id, "properties": properties or {}}},
                 headers={
                     "openpanel-client-id": settings.OPENPANEL_CLIENT_ID,
                     "openpanel-client-secret": settings.OPENPANEL_CLIENT_SECRET,

backend/app/services/expand_service.py

@@ -206,11 +206,6 @@ async def _load_material_maps(db: AsyncSession, materials: list[Material], expan
     material_ids = [m.id for m in materials]
     maps: dict = {"categories": {}, "units": {}, "brands": {}, "material_brands": {}, "mavs": {}, "attr_defs": {}}
 
-    if "category" in expand:
-        cat_ids = {m.category_id for m in materials}
-        rows = (await db.execute(select(MaterialCategory).where(MaterialCategory.id.in_(cat_ids)))).scalars().all()
-        maps["categories"] = {c.id: c for c in rows}
-
     unit_ids: set[int] = set()
     if "canonical_unit" in expand:
         unit_ids |= {m.canonical_unit_id for m in materials}
@@ -257,10 +252,12 @@ def _material_to_dict(m: Material, expand: set[str], maps: dict) -> dict:
         "created_at": to_iso(m.created_at),
         "updated_at": to_iso(m.updated_at),
     }
+    # Category is a supplier attribute now, not a material one — the key stays
+    # in the payload (null) so the contract shape is unchanged.
     if "category" in expand:
-        d["category"] = category_brief(maps["categories"].get(m.category_id))
+        d["category"] = None
     else:
-        d["category_id"] = str(m.category_id)
+        d["category_id"] = None
     if "canonical_unit" in expand:
         d["canonical_unit"] = unit_to_dict(maps["units"].get(m.canonical_unit_id))
     else:
@@ -326,9 +323,6 @@ async def _load_line_item_data(db: AsyncSession, line_items: list[LineItem], exp
         material_ids = {li.material_id for li in line_items}
         materials = (await db.execute(select(Material).where(Material.id.in_(material_ids)))).scalars().all()
         data.materials = {m.id: m for m in materials}
-        cat_ids = {m.category_id for m in materials}
-        cats = (await db.execute(select(MaterialCategory).where(MaterialCategory.id.in_(cat_ids)))).scalars().all()
-        data.categories = {c.id: c for c in cats}
         bms = (await db.execute(select(BrandMaterial).where(BrandMaterial.material_id.in_(material_ids)))).scalars().all()
         brand_ids: set[uuid.UUID] = set()
         for bm in bms:
@@ -450,7 +444,7 @@ def _line_item_expanded(li: LineItem, expand: set[str], data: _LineItemData, inc
             d["material"] = {
                 "id": str(m.id),
                 "name": m.name,
-                "category": category_brief(data.categories.get(m.category_id)),
+                "category": None,
                 "brands": [
                     {"id": str(bm.brand_id), "name": data.brands[bm.brand_id].name, "catalog_code": bm.catalog_code}
                     for bm in data.material_brands.get(m.id, [])

backend/app/services/material_service.py

@@ -12,7 +12,6 @@ from app.models.catalog import (
     BrandMaterial,
     Material,
     MaterialAttributeValue,
-    MaterialCategory,
     Unit,
 )
 from app.schemas.catalog import MaterialAttributeIn, MaterialCreate, MaterialUpdate
@@ -110,9 +109,7 @@ async def validate_attributes(
 async def create_material(db: AsyncSession, payload: MaterialCreate) -> Material:
     """Create a material + brand_materials rows + EAV values in ONE transaction.
 
-    v2.5/2.6: category_id is OPTIONAL — a global material may be created
-    without a category (it gets derived automatically from the first linked
-    supplier). name is GLOBALLY unique.
+    v2.6/v2.7: materials are global and category-free. name is GLOBALLY unique.
     """
     async with db.begin():
         duplicate = await db.scalar(
@@ -121,14 +118,10 @@ async def create_material(db: AsyncSession, payload: MaterialCreate) -> Material
         if duplicate is not None:
             raise ConflictError("متریالی با این نام در کل کاتالوگ قبلاً ثبت شده است", field="name")
 
-        if payload.category_id is not None:
-            if await db.get(MaterialCategory, payload.category_id) is None:
-                raise NotFoundError("دسته‌بندی یافت نشد", field="category_id")
         if not await db.get(Unit, payload.canonical_unit_id):
             raise NotFoundError("واحد مرجع یافت نشد", field="canonical_unit_id")
 
         material = Material(
-            category_id=payload.category_id,
             name=payload.name,
             topic=payload.topic,
             canonical_unit_id=payload.canonical_unit_id,

backend/app/services/project_transfer_service.py

@@ -0,0 +1,471 @@
+import uuid
+from datetime import datetime, timezone
+from decimal import Decimal
+
+from sqlalchemy import delete, select
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy.orm import selectinload
+
+from app.models.catalog import Brand, Material, Unit
+from app.models.inventory import InventoryItem, InventoryTransaction, Warehouse
+from app.models.procurement import Project
+from app.models.project_transfer import ProjectTransfer
+from app.schemas.project_transfers import (
+    ProjectTransferCreate,
+    ProjectTransferReceive,
+    ProjectTransferUpdate,
+)
+from app.services.inventory_service import (
+    _find_inventory,
+    _get_or_create_inventory,
+    canonical_specs_hash,
+)
+from app.utils.errors import ConflictError, ForbiddenError, NotFoundError, ValidationError
+
+
+async def get_project_transfer_or_404(db: AsyncSession, transfer_id: uuid.UUID) -> ProjectTransfer:
+    stmt = (
+        select(ProjectTransfer)
+        .where(ProjectTransfer.id == transfer_id)
+        .options(
+            selectinload(ProjectTransfer.from_project),
+            selectinload(ProjectTransfer.to_project),
+            selectinload(ProjectTransfer.from_warehouse),
+            selectinload(ProjectTransfer.to_warehouse),
+            selectinload(ProjectTransfer.material),
+            selectinload(ProjectTransfer.brand),
+            selectinload(ProjectTransfer.unit),
+        )
+    )
+    transfer = await db.scalar(stmt)
+    if transfer is None:
+        raise NotFoundError("رکورد انتقال بین کارگاهی یافت نشد", field="transfer_id")
+    return transfer
+
+
+async def create_project_transfer(
+    db: AsyncSession,
+    payload: ProjectTransferCreate,
+    caller_project_id: uuid.UUID | None,
+    caller_role: str,
+    transferred_by: str | None = None,
+) -> ProjectTransfer:
+    tx = db.begin_nested() if db.in_transaction() else db.begin()
+    async with tx:
+        # Validate source warehouse
+        from_wh = await db.get(Warehouse, payload.from_warehouse_id)
+        if from_wh is None:
+            raise NotFoundError("انبار مبدأ یافت نشد", field="from_warehouse_id")
+
+        # RBAC: PM can only send from their own project
+        if caller_role == "pm" and caller_project_id is not None:
+            if from_wh.project_id != caller_project_id:
+                raise ForbiddenError("شما فقط مجاز به انتقال از انبار پروژه خود هستید")
+
+        from_proj = await db.get(Project, from_wh.project_id)
+        to_proj = await db.get(Project, payload.to_project_id)
+        if to_proj is None:
+            raise NotFoundError("پروژه مقصد یافت نشد", field="to_project_id")
+
+        if from_wh.project_id == payload.to_project_id:
+            raise ValidationError(
+                "پروژه مقصد نمی‌تواند همان پروژه مبدأ باشد (از انتقال بین‌انباری استفاده کنید)",
+                field="to_project_id",
+            )
+
+        # Validate material, brand, unit
+        mat = await db.get(Material, payload.material_id)
+        if mat is None:
+            raise NotFoundError("ماده اولیه یافت نشد", field="material_id")
+
+        if payload.brand_id is not None:
+            brand = await db.get(Brand, payload.brand_id)
+            if brand is None:
+                raise NotFoundError("برند یافت نشد", field="brand_id")
+
+        unit = await db.get(Unit, payload.unit_id)
+        if unit is None:
+            raise NotFoundError("واحد یافت نشد", field="unit_id")
+
+        # Requirement 2: Canonical specs hash from inventory_service
+        specs = payload.specs or {}
+        specs_hash = canonical_specs_hash(specs)
+
+        # Check stock in source warehouse with SELECT ... FOR UPDATE
+        source_item = await _find_inventory(
+            db,
+            payload.from_warehouse_id,
+            payload.material_id,
+            payload.brand_id,
+            specs_hash,
+            for_update=True,
+        )
+
+        # Smart fallback: If exact hash or brand didn't match, check candidate rows in this warehouse for this material
+        if source_item is None:
+            candidates_res = await db.execute(
+                select(InventoryItem)
+                .where(
+                    InventoryItem.warehouse_id == payload.from_warehouse_id,
+                    InventoryItem.material_id == payload.material_id,
+                )
+                .with_for_update()
+            )
+            candidates = candidates_res.scalars().all()
+
+            if len(candidates) == 1:
+                source_item = candidates[0]
+            elif len(candidates) > 1:
+                best_cand = None
+                best_score = -1
+                p_keys = set(specs.keys())
+                p_vals = set(str(v).strip() for v in specs.values() if str(v).strip())
+
+                for cand in candidates:
+                    score = 0
+                    if cand.brand_id == payload.brand_id:
+                        score += 10
+                    elif cand.brand_id is None and payload.brand_id is None:
+                        score += 10
+                    elif cand.brand_id is None:
+                        score += 4
+
+                    c_specs = cand.specs or {}
+                    c_keys = set(c_specs.keys())
+                    c_vals = set(str(v).strip() for v in c_specs.values() if str(v).strip())
+
+                    for pk in p_keys:
+                        if pk in c_keys or f"spec_{pk}" in c_keys or any(pk in ck for ck in c_keys):
+                            score += 5
+                    for pv in p_vals:
+                        if pv in c_vals or any(pv in str(cv) for cv in c_vals):
+                            score += 5
+
+                    if cand.quantity >= payload.quantity:
+                        score += 2
+
+                    if score > best_score:
+                        best_score = score
+                        best_cand = cand
+
+                source_item = best_cand
+
+        if source_item is None or source_item.quantity < payload.quantity:
+            avail = source_item.quantity if source_item else Decimal("0")
+            raise ValidationError(
+                f"موجودی کافی در انبار مبدأ وجود ندارد (موجودی فعلی: {avail})",
+                field="quantity",
+            )
+
+        # Deduct from source warehouse immediately
+        source_item.quantity -= payload.quantity
+
+        transfer_pair_id = uuid.uuid4()
+        now_dt = payload.transfer_date or datetime.now(timezone.utc)
+        note_text = f"انتقال بین کارگاهی به پروژه {to_proj.name}"
+        if payload.note:
+            note_text += f" — {payload.note}"
+
+        out_tx = InventoryTransaction(
+            inventory_id=source_item.id,
+            warehouse_id=from_wh.id,
+            transaction_type="TRANSFER_OUT",
+            quantity=-payload.quantity,
+            transfer_pair_id=transfer_pair_id,
+            performed_by=transferred_by,
+            transaction_date=now_dt,
+            note=note_text,
+        )
+        db.add(out_tx)
+        await db.flush()
+
+        actual_brand_id = source_item.brand_id
+        actual_specs = source_item.specs if source_item.specs is not None else specs
+        actual_specs_hash = source_item.specs_hash or canonical_specs_hash(actual_specs)
+
+        transfer = ProjectTransfer(
+            from_project_id=from_wh.project_id,
+            from_warehouse_id=from_wh.id,
+            to_project_id=payload.to_project_id,
+            material_id=payload.material_id,
+            brand_id=actual_brand_id,
+            unit_id=source_item.unit_id if source_item.unit_id else payload.unit_id,
+            quantity=payload.quantity,
+            specs=actual_specs,
+            specs_hash=actual_specs_hash,
+            note=payload.note,
+            status="in_transit",
+            out_transaction_id=out_tx.id,
+            transfer_date=now_dt,
+            transferred_by=transferred_by,
+        )
+        db.add(transfer)
+        await db.flush()
+
+    return await get_project_transfer_or_404(db, transfer.id)
+
+
+async def update_project_transfer(
+    db: AsyncSession,
+    transfer_id: uuid.UUID,
+    payload: ProjectTransferUpdate,
+    caller_project_id: uuid.UUID | None,
+    caller_role: str,
+) -> ProjectTransfer:
+    tx = db.begin_nested() if db.in_transaction() else db.begin()
+    async with tx:
+        transfer = await db.scalar(
+            select(ProjectTransfer).where(ProjectTransfer.id == transfer_id).with_for_update()
+        )
+        if transfer is None:
+            raise NotFoundError("رکورد انتقال یافت نشد", field="transfer_id")
+
+        # RBAC (Requirement 4)
+        if caller_role == "pm" and caller_project_id is not None:
+            if transfer.from_project_id != caller_project_id:
+                raise ForbiddenError("شما فقط مجاز به ویرایش انتقال‌های پروژه مبدأ خود هستید")
+
+        # Status Lock Guard (Requirement 4)
+        if transfer.status == "received":
+            raise ConflictError(
+                "این انتقال در پروژه مقصد تحویل و ثبت انبار شده است و امکان ویرایش آن وجود ندارد"
+            )
+        if transfer.status != "in_transit":
+            raise ConflictError("فقط انتقال‌های در راه (in_transit) قابل ویرایش هستند")
+
+        if payload.to_project_id is not None and payload.to_project_id != transfer.to_project_id:
+            new_to_proj = await db.get(Project, payload.to_project_id)
+            if new_to_proj is None:
+                raise NotFoundError("پروژه مقصد یافت نشد", field="to_project_id")
+            if payload.to_project_id == transfer.from_project_id:
+                raise ValidationError("پروژه مقصد نمی‌تواند همان پروژه مبدأ باشد", field="to_project_id")
+            transfer.to_project_id = payload.to_project_id
+
+        # Quantity adjustment (reconciles source stock difference)
+        if payload.quantity is not None and payload.quantity != transfer.quantity:
+            delta = payload.quantity - transfer.quantity
+            source_item = await _find_inventory(
+                db,
+                transfer.from_warehouse_id,
+                transfer.material_id,
+                transfer.brand_id,
+                transfer.specs_hash,
+                for_update=True,
+            )
+            if delta > 0:
+                if source_item is None or source_item.quantity < delta:
+                    avail = source_item.quantity if source_item else Decimal("0")
+                    raise ValidationError(
+                        f"موجودی انبار مبدأ برای افزایش انتقال کافی نیست (موجود: {avail})",
+                        field="quantity",
+                    )
+                source_item.quantity -= delta
+            else:
+                if source_item is not None:
+                    source_item.quantity += abs(delta)
+
+            transfer.quantity = payload.quantity
+
+            # Update out_transaction
+            if transfer.out_transaction_id is not None:
+                out_tx = await db.get(InventoryTransaction, transfer.out_transaction_id)
+                if out_tx is not None:
+                    out_tx.quantity = -payload.quantity
+
+        if payload.note is not None:
+            transfer.note = payload.note
+
+        if payload.transfer_date is not None:
+            transfer.transfer_date = payload.transfer_date
+            if transfer.out_transaction_id is not None:
+                out_tx = await db.get(InventoryTransaction, transfer.out_transaction_id)
+                if out_tx is not None:
+                    out_tx.transaction_date = payload.transfer_date
+
+    return await get_project_transfer_or_404(db, transfer_id)
+
+
+async def delete_project_transfer(
+    db: AsyncSession,
+    transfer_id: uuid.UUID,
+    caller_project_id: uuid.UUID | None,
+    caller_role: str,
+) -> dict:
+    tx = db.begin_nested() if db.in_transaction() else db.begin()
+    async with tx:
+        transfer = await db.scalar(
+            select(ProjectTransfer).where(ProjectTransfer.id == transfer_id).with_for_update()
+        )
+        if transfer is None:
+            raise NotFoundError("رکورد انتقال یافت نشد", field="transfer_id")
+
+        # RBAC (Requirement 4)
+        if caller_role == "pm" and caller_project_id is not None:
+            if transfer.from_project_id != caller_project_id:
+                raise ForbiddenError("شما فقط مجاز به لغو انتقال‌های پروژه مبدأ خود هستید")
+
+        # Status Lock Guard (Requirement 4)
+        if transfer.status == "received":
+            raise ConflictError(
+                "این انتقال در پروژه مقصد تحویل و ثبت انبار شده است و امکان لغو یا حذف آن وجود ندارد"
+            )
+
+        # Reversibility (Requirement 4): Restore stock to source warehouse
+        source_item = await _find_inventory(
+            db,
+            transfer.from_warehouse_id,
+            transfer.material_id,
+            transfer.brand_id,
+            transfer.specs_hash,
+            for_update=True,
+        )
+        if source_item is not None:
+            source_item.quantity += transfer.quantity
+
+        # Delete out_transaction
+        if transfer.out_transaction_id is not None:
+            out_tx = await db.get(InventoryTransaction, transfer.out_transaction_id)
+            if out_tx is not None:
+                await db.delete(out_tx)
+
+        await db.delete(transfer)
+
+    return {"ok": True, "message": "انتقال با موفقیت لغو شد و موجودی به انبار مبدأ بازگردانده شد"}
+
+
+async def receive_project_transfer(
+    db: AsyncSession,
+    transfer_id: uuid.UUID,
+    payload: ProjectTransferReceive,
+    caller_project_id: uuid.UUID | None,
+    caller_role: str,
+    received_by: str | None = None,
+) -> ProjectTransfer:
+    tx = db.begin_nested() if db.in_transaction() else db.begin()
+    async with tx:
+        transfer = await db.scalar(
+            select(ProjectTransfer).where(ProjectTransfer.id == transfer_id).with_for_update()
+        )
+        if transfer is None:
+            raise NotFoundError("رکورد انتقال یافت نشد", field="transfer_id")
+
+        # RBAC (Requirement 4)
+        if caller_role == "pm" and caller_project_id is not None:
+            if transfer.to_project_id != caller_project_id:
+                raise ForbiddenError("شما فقط مجاز به تأیید تحویل در پروژه مقصد خود هستید")
+
+        # Lock Guard
+        if transfer.status == "received":
+            raise ConflictError("این انتقال قبلاً تحویل گرفته و ثبت انبار شده است")
+        if transfer.status != "in_transit":
+            raise ConflictError("این انتقال در وضعیت در راه نیست")
+
+        # Requirement 1: 100% full delivery logic (no partial receipt)
+        alloc_sum = sum(Decimal(str(a.quantity)) for a in payload.allocations)
+        if alloc_sum != transfer.quantity:
+            raise ValidationError(
+                f"تخصیص انبارها باید دقیقاً برابر کل مقدار ارسالی ({transfer.quantity}) باشد. مجموع واردشده: {alloc_sum}",
+                field="allocations",
+            )
+
+        # Validate destination warehouses belong to destination project
+        wh_ids = [a.warehouse_id for a in payload.allocations]
+        wh_rows = (await db.execute(select(Warehouse).where(Warehouse.id.in_(wh_ids)))).scalars().all()
+        wh_map = {w.id: w for w in wh_rows}
+
+        for a in payload.allocations:
+            wh = wh_map.get(a.warehouse_id)
+            if wh is None or wh.project_id != transfer.to_project_id:
+                raise ValidationError(
+                    "انبار انتخاب‌شده معتبر نیست یا متعلق به پروژه مقصد نمی‌باشد",
+                    field="allocations.warehouse_id",
+                )
+
+        from_proj = await db.get(Project, transfer.from_project_id)
+        from_proj_name = from_proj.name if from_proj else "پروژه مبدأ"
+
+        out_tx = (
+            await db.get(InventoryTransaction, transfer.out_transaction_id)
+            if transfer.out_transaction_id
+            else None
+        )
+        pair_id = out_tx.transfer_pair_id if (out_tx and out_tx.transfer_pair_id) else uuid.uuid4()
+        now_dt = payload.received_at or datetime.now(timezone.utc)
+
+        # Add stock to destination warehouse(s) via TRANSFER_IN
+        for a in payload.allocations:
+            dest_item = await _get_or_create_inventory(
+                db,
+                a.warehouse_id,
+                transfer.material_id,
+                transfer.brand_id,
+                transfer.unit_id,
+                transfer.specs,
+                transfer.specs_hash,
+            )
+            dest_item.quantity += a.quantity
+
+            note_text = f"رسید انتقال بین کارگاهی از {from_proj_name}"
+            if payload.note:
+                note_text += f" — {payload.note}"
+
+            in_tx = InventoryTransaction(
+                inventory_id=dest_item.id,
+                warehouse_id=a.warehouse_id,
+                transaction_type="TRANSFER_IN",
+                quantity=a.quantity,
+                transfer_pair_id=pair_id,
+                performed_by=received_by,
+                transaction_date=now_dt,
+                note=note_text,
+            )
+            db.add(in_tx)
+
+        transfer.status = "received"
+        transfer.received_at = now_dt
+        transfer.received_by = received_by
+        transfer.to_warehouse_id = payload.allocations[0].warehouse_id
+        transfer.receipt_allocations = [
+            {"warehouse_id": str(a.warehouse_id), "quantity": str(a.quantity)}
+            for a in payload.allocations
+        ]
+
+    return await get_project_transfer_or_404(db, transfer_id)
+
+
+async def list_project_transfers(
+    db: AsyncSession,
+    project_id: uuid.UUID | None = None,
+    direction: str = "all",  # 'outgoing' | 'incoming' | 'all'
+    status: str | None = None,
+) -> list[ProjectTransfer]:
+    stmt = (
+        select(ProjectTransfer)
+        .options(
+            selectinload(ProjectTransfer.from_project),
+            selectinload(ProjectTransfer.to_project),
+            selectinload(ProjectTransfer.from_warehouse),
+            selectinload(ProjectTransfer.to_warehouse),
+            selectinload(ProjectTransfer.material),
+            selectinload(ProjectTransfer.brand),
+            selectinload(ProjectTransfer.unit),
+        )
+    )
+
+    if project_id is not None:
+        if direction == "outgoing":
+            stmt = stmt.where(ProjectTransfer.from_project_id == project_id)
+        elif direction == "incoming":
+            stmt = stmt.where(ProjectTransfer.to_project_id == project_id)
+        else:
+            stmt = stmt.where(
+                (ProjectTransfer.from_project_id == project_id)
+                | (ProjectTransfer.to_project_id == project_id)
+            )
+
+    if status:
+        stmt = stmt.where(ProjectTransfer.status == status)
+
+    stmt = stmt.order_by(ProjectTransfer.transfer_date.desc())
+    res = await db.execute(stmt)
+    return list(res.scalars().all())

backend/app/services/quote_service.py

@@ -7,6 +7,7 @@ same transaction.
 import asyncio
 import logging
 from datetime import date, datetime, timezone
+from decimal import Decimal
 from uuid import UUID
 
 from sqlalchemy import delete, func, select, update
@@ -18,6 +19,7 @@ from app.models.procurement import (
     ItemTermsheet,
     LineItem,
     LineItemProjects,
+    LineItemSpec,
     Project,
     Quote,
     QuoteEvent,
@@ -418,6 +420,78 @@ async def replace_quote_children(
 
 
 
+async def _ensure_quote_project(db: AsyncSession, quote_id: UUID, project_id: UUID) -> None:
+    """Ensure (quote_id, project_id) exists in quote_projects junction."""
+    exists = await db.scalar(
+        select(QuoteProjects).where(
+            QuoteProjects.quote_id == quote_id,
+            QuoteProjects.project_id == project_id,
+        )
+    )
+    if not exists:
+        db.add(QuoteProjects(quote_id=quote_id, project_id=project_id))
+
+
+async def _merge_split_line_items_on_reopen(db: AsyncSession, quote_id: UUID) -> None:
+    """Consolidate split line items when reverting a quote back to offered.
+
+    Line items sharing the exact same material, brand_material, unit, notes,
+    and identical specs are merged into a single consolidated row whose quantity
+    is the sum of all split rows. Secondary split rows are safely deleted.
+    """
+    line_items = (
+        await db.execute(
+            select(LineItem).where(LineItem.quote_id == quote_id).order_by(LineItem.created_at.asc(), LineItem.id.asc())
+        )
+    ).scalars().all()
+    if len(line_items) <= 1:
+        return
+
+    # Load all specs for these line items to compare canonical signatures
+    specs_rows = (
+        await db.execute(
+            select(LineItemSpec).where(LineItemSpec.line_item_id.in_([li.id for li in line_items]))
+        )
+    ).scalars().all()
+    specs_by_li: dict[UUID, list[tuple]] = {}
+    for sp in specs_rows:
+        sig = (
+            str(sp.attribute_definition_id),
+            str(sp.value_number) if sp.value_number is not None else "",
+            (sp.value_string or "").strip(),
+            str(sp.value_boolean) if sp.value_boolean is not None else "",
+            str(sp.value_date) if sp.value_date is not None else "",
+        )
+        specs_by_li.setdefault(sp.line_item_id, []).append(sig)
+
+    # Group line items by identity
+    groups: dict[tuple, list[LineItem]] = {}
+    for li in line_items:
+        specs_sig = tuple(sorted(specs_by_li.get(li.id, [])))
+        key = (
+            li.material_id,
+            li.brand_material_id,
+            li.unit_id,
+            (li.notes or "").strip(),
+            specs_sig,
+        )
+        groups.setdefault(key, []).append(li)
+
+    for key, items in groups.items():
+        if len(items) > 1:
+            primary = items[0]
+            total_qty = sum(Decimal(str(it.quantity)) for it in items)
+            primary.quantity = total_qty
+
+            secondary_ids = [it.id for it in items[1:]]
+            await db.execute(delete(ItemDecision).where(ItemDecision.line_item_id.in_(secondary_ids)))
+            await db.execute(delete(ItemTermsheet).where(ItemTermsheet.line_item_id.in_(secondary_ids)))
+            await db.execute(delete(LineItemProjects).where(LineItemProjects.line_item_id.in_(secondary_ids)))
+            await db.execute(delete(LineItemSpec).where(LineItemSpec.line_item_id.in_(secondary_ids)))
+            await db.execute(delete(LineItem).where(LineItem.id.in_(secondary_ids)))
+            await db.flush()
+
+
 async def _apply_status_transition(db: AsyncSession, quote: Quote, new_status: str) -> None:
     """Backward transitions only; reverts bookkeeping when going back to offered."""
     current = quote.status
@@ -454,6 +528,8 @@ async def _apply_status_transition(db: AsyncSession, quote: Quote, new_status: s
             )
             .execution_options(synchronize_session=False)
         )
+        # Requirement 2: Merge split line items back into single rows
+        await _merge_split_line_items_on_reopen(db, quote.id)
         # LineItemProjects (candidate projects) are preserved untouched!
     elif new_status == "accepted":  # arrived -> accepted
         quote.arrived_date = None
@@ -557,6 +633,125 @@ async def accept_quote(db: AsyncSession, quote_id: UUID, payload: AcceptQuoteIn,
                         "برای قلم انتخاب‌شده adjusted_unit_price الزامی است", field="item_decisions"
                     )
                 termsheet_id = ts_ids_by_index[index]
+
+                li_row = await db.scalar(
+                    select(LineItem).where(LineItem.id == decision_in.line_item_id).with_for_update()
+                )
+                if li_row is None:
+                    raise NotFoundError("خط آیتم یافت نشد", field="item_decisions.line_item_id")
+
+                allocations = decision_in.allocations or []
+                if allocations:
+                    # Requirement 3: Validate no duplicate projects within allocations of this item
+                    alloc_pids = [a.project_id for a in allocations]
+                    if len(alloc_pids) != len(set(alloc_pids)):
+                        raise ValidationError(
+                            "پروژه تکراری برای یک قلم کالا در ردیف‌های تخصیص انتخاب شده است",
+                            field="item_decisions.allocations",
+                        )
+                    # Requirement 5: Decimal precision check for sum of allocation quantities
+                    alloc_sum = sum(Decimal(str(a.quantity)) for a in allocations)
+                    target_qty = Decimal(str(li_row.quantity))
+                    if alloc_sum != target_qty:
+                        raise ValidationError(
+                            f"مجموع مقادیر تخصیص‌یافته ({alloc_sum}) با مقدار کل قلم ({target_qty}) برابر نیست",
+                            field="item_decisions.allocations",
+                        )
+                    # Validate all projects exist
+                    for a in allocations:
+                        if await db.get(Project, a.project_id) is None:
+                            raise NotFoundError("پروژه یافت نشد", field="item_decisions.allocations.project_id")
+
+                    if len(allocations) >= 2:
+                        # 1. Update the original line item to the first allocation quantity
+                        first_alloc = allocations[0]
+                        li_row.quantity = first_alloc.quantity
+                        decision_in.project_id = first_alloc.project_id
+
+                        # Query all existing item_termsheets and line_item_specs for copying
+                        orig_termsheets = (
+                            await db.execute(
+                                select(ItemTermsheet).where(ItemTermsheet.line_item_id == li_row.id)
+                            )
+                        ).scalars().all()
+                        orig_specs = (
+                            await db.execute(
+                                select(LineItemSpec).where(LineItemSpec.line_item_id == li_row.id)
+                            )
+                        ).scalars().all()
+
+                        # 2. For each subsequent allocation, create a new LineItem and copy specs + ALL termsheets
+                        for split_alloc in allocations[1:]:
+                            new_li = LineItem(
+                                quote_id=quote.id,
+                                material_id=li_row.material_id,
+                                brand_material_id=li_row.brand_material_id,
+                                unit_id=li_row.unit_id,
+                                quantity=split_alloc.quantity,
+                                notes=li_row.notes,
+                            )
+                            db.add(new_li)
+                            await db.flush()
+
+                            # Copy LineItemSpec
+                            for sp in orig_specs:
+                                db.add(
+                                    LineItemSpec(
+                                        line_item_id=new_li.id,
+                                        attribute_definition_id=sp.attribute_definition_id,
+                                        value_number=sp.value_number,
+                                        value_string=sp.value_string,
+                                        value_boolean=sp.value_boolean,
+                                        value_date=sp.value_date,
+                                        unit_id_at_time=sp.unit_id_at_time,
+                                    )
+                                )
+
+                            # Requirement 1: Copy ALL payment options (ItemTermsheet)
+                            chosen_new_it: ItemTermsheet | None = None
+                            for it_orig in orig_termsheets:
+                                price = (
+                                    decision_in.adjusted_unit_price
+                                    if (it_orig.termsheet_id == termsheet_id and decision_in.adjusted_unit_price is not None)
+                                    else it_orig.unit_price
+                                )
+                                copied_it = ItemTermsheet(
+                                    line_item_id=new_li.id,
+                                    termsheet_id=it_orig.termsheet_id,
+                                    unit_price=price,
+                                    min_order_qty=it_orig.min_order_qty,
+                                )
+                                db.add(copied_it)
+                                if it_orig.termsheet_id == termsheet_id:
+                                    chosen_new_it = copied_it
+
+                            if chosen_new_it is None:
+                                chosen_new_it = ItemTermsheet(
+                                    line_item_id=new_li.id,
+                                    termsheet_id=termsheet_id,
+                                    unit_price=decision_in.adjusted_unit_price,
+                                )
+                                db.add(chosen_new_it)
+                            await db.flush()
+
+                            # Create ItemDecision for the split line item
+                            new_decision = ItemDecision(
+                                line_item_id=new_li.id,
+                                status="chosen",
+                                chosen_item_termsheet_id=chosen_new_it.id,
+                                adjusted_unit_price=decision_in.adjusted_unit_price,
+                                adjusted_notes=decision_in.adjusted_notes,
+                                project_id=split_alloc.project_id,
+                                decided_at=utcnow(),
+                            )
+                            db.add(new_decision)
+
+                            # Requirement 4: sync QuoteProjects & LineItemProjects
+                            await _ensure_quote_project(db, quote.id, split_alloc.project_id)
+                            db.add(LineItemProjects(line_item_id=new_li.id, project_id=split_alloc.project_id))
+                    elif len(allocations) == 1:
+                        decision_in.project_id = allocations[0].project_id
+
                 it = await db.scalar(
                     select(ItemTermsheet).where(
                         ItemTermsheet.line_item_id == decision_in.line_item_id,
@@ -610,6 +805,8 @@ async def accept_quote(db: AsyncSession, quote_id: UUID, payload: AcceptQuoteIn,
                 if decision.project_id is not None:
                     if await db.get(Project, decision.project_id) is None:
                         raise NotFoundError("پروژه یافت نشد", field="item_decisions.project_id")
+                    # Requirement 4: sync QuoteProjects
+                    await _ensure_quote_project(db, quote.id, decision.project_id)
                 chosen_ts_ids.add(termsheet_id)
             else:  # rejected
                 if decision is None:
@@ -873,7 +1070,6 @@ async def quote_stats(
     project_id: UUID | None = None,
     quote_date_from=None,
     quote_date_to=None,
-    category_id: UUID | None = None,
 ) -> dict:
     conditions = []
     if supplier_id is not None:
@@ -884,8 +1080,6 @@ async def quote_stats(
         conditions.append(Quote.quote_date >= quote_date_from)
     if quote_date_to is not None:
         conditions.append(Quote.quote_date <= quote_date_to)
-    if category_id is not None:
-        conditions.append(_quote_has_category(category_id))
 
     rows = (
         await db.execute(
@@ -917,38 +1111,46 @@ async def quote_stats(
     }
 
 
-def _quote_has_category(category_id: UUID):
-    """EXISTS: quote has a line item whose material belongs to category_id."""
-    from app.models.catalog import Material
-
-    sub = (
-        select(1)
-        .where(
-            LineItem.quote_id == Quote.id,
-            Material.id == LineItem.material_id,
-            Material.category_id == category_id,
-        )
-    )
-    return func.exists(sub)
-
-
 async def project_stats(db: AsyncSession, project_id: UUID) -> dict:
-    """Counts + total value per quote status for one project.
+    """Counts + total value per quote status for ONE project, isolated per project.
 
-    total_value: SUM(quantity × unit_price) over line items using the chosen
-    termsheet link first, else the first link. Rejected line items are
-    excluded from value sums (contract P1-14).
+    A quote lands in this project's «accepted»/«arrived» bucket ONLY if at
+    least one non-rejected line item's decision targets this project
+    (item_decisions.project_id). A quote merely linked to the project as a
+    candidate (quote-level link, line-item candidates, or accepted for a
+    DIFFERENT project) stays in «offered» — this project never accepted it.
+
+    total_value: SUM(quantity × unit_price) over the bucket's line items,
+    using the chosen termsheet link first, else the first link. Rejected
+    line items are excluded from value sums (contract P1-14).
     """
     project = await db.get(Project, project_id)
     if project is None:
         raise NotFoundError("پروژه یافت نشد")
+    # the route passes the raw path string — normalize for the Python-side
+    # UUID comparisons below (decision.project_id == project_id etc.)
+    project_id = UUID(str(project_id))
 
-    quotes = (await db.execute(select(Quote).where(Quote.project_id == project_id))).scalars().all()
-    if not quotes:
+    # --- every quote RELEVANT to this project (any kind of link) ---
+    quote_id_rows = await db.execute(
+        select(Quote.id)
+        .outerjoin(QuoteProjects, QuoteProjects.quote_id == Quote.id)
+        .outerjoin(LineItem, LineItem.quote_id == Quote.id)
+        .outerjoin(LineItemProjects, LineItemProjects.line_item_id == LineItem.id)
+        .outerjoin(ItemDecision, ItemDecision.line_item_id == LineItem.id)
+        .where(
+            (Quote.project_id == project_id)
+            | (QuoteProjects.project_id == project_id)
+            | (LineItemProjects.project_id == project_id)
+            | (ItemDecision.project_id == project_id)
+        )
+    )
+    quote_ids = [row[0] for row in quote_id_rows.all()]
+    if not quote_ids:
         empty = {status: {"count": 0, "total_value": 0} for status in QUOTE_STATUSES}
         return {"project_id": str(project_id), "total_quotes": 0, **empty}
 
-    quote_ids = [q.id for q in quotes]
+    quotes = (await db.execute(select(Quote).where(Quote.id.in_(quote_ids)))).scalars().all()
     line_items = (await db.execute(select(LineItem).where(LineItem.quote_id.in_(quote_ids)))).scalars().all()
     li_ids = [li.id for li in line_items]
 
@@ -956,6 +1158,18 @@ async def project_stats(db: AsyncSession, project_id: UUID) -> dict:
         d.line_item_id: d
         for d in (await db.execute(select(ItemDecision).where(ItemDecision.line_item_id.in_(li_ids)))).scalars().all()
     } if li_ids else {}
+    # line items explicitly linked to this project as candidates
+    candidate_li_ids = set(
+        (
+            await db.execute(
+                select(LineItemProjects.line_item_id).where(
+                    LineItemProjects.line_item_id.in_(li_ids),
+                    LineItemProjects.project_id == project_id,
+                )
+            )
+        ).scalars().all()
+    ) if li_ids else set()
+
     item_termsheets = (
         (await db.execute(select(ItemTermsheet).where(ItemTermsheet.line_item_id.in_(li_ids)))).scalars().all()
     ) if li_ids else []
@@ -964,12 +1178,56 @@ async def project_stats(db: AsyncSession, project_id: UUID) -> dict:
     for it in item_termsheets:
         its_by_line.setdefault(it.line_item_id, []).append(it)
 
+    def _items_of(quote: Quote) -> list[LineItem]:
+        return [li for li in line_items if li.quote_id == quote.id]
+
+    def _accepted_for_project(quote: Quote) -> bool:
+        """≥1 non-rejected line item whose decision targets THIS project."""
+        return any(
+            (decision := decisions.get(li.id)) is not None
+            and decision.status == "chosen"
+            and decision.project_id == project_id
+            for li in _items_of(quote)
+        )
+
+    def _has_any_target(quote: Quote) -> bool:
+        """Whether any decision of this quote carries a target project at all
+        (legacy quotes accepted before the decision-project era have none —
+        they keep the old global-status classification)."""
+        return any(
+            (decisions.get(li.id) is not None and decisions[li.id].project_id is not None)
+            for li in _items_of(quote)
+        )
+
     per_status = {status: {"count": 0, "total_value": 0.0} for status in QUOTE_STATUSES}
     for q in quotes:
-        per_status[q.status]["count"] += 1
+        if q.status in ("accepted", "arrived") and _has_any_target(q) and not _accepted_for_project(q):
+            per_status["offered"]["count"] += 1  # linked, but never accepted for THIS project
+        else:
+            per_status[q.status]["count"] += 1
 
     for li in line_items:
+        quote = next(q for q in quotes if q.id == li.quote_id)
         decision = decisions.get(li.id)
+
+        # --- which status bucket does this line item's value belong to? ---
+        accepted_here = (
+            decision is not None
+            and decision.status == "chosen"
+            and decision.project_id == project_id
+        )
+        if quote.status in ("accepted", "arrived") and _has_any_target(quote):
+            if accepted_here:
+                bucket = quote.status
+            elif li.id in candidate_li_ids:
+                # the quote is still just a proposal for this project — the
+                # item's candidate value stays in the offered bucket
+                bucket = "offered"
+            else:
+                continue  # this item targets another project entirely
+        else:
+            bucket = quote.status
+
         if decision is not None and decision.status == "rejected":
             continue  # rejected items excluded from value sums
         if decision is not None and decision.chosen_item_termsheet_id is not None:
@@ -979,8 +1237,7 @@ async def project_stats(db: AsyncSession, project_id: UUID) -> dict:
             price_it = links[0] if links else None
         if price_it is None:
             continue
-        quote = next(q for q in quotes if q.id == li.quote_id)
-        per_status[quote.status]["total_value"] += float(price_it.unit_price * li.quantity)
+        per_status[bucket]["total_value"] += float(price_it.unit_price * li.quantity)
 
     result = {"project_id": str(project_id), "total_quotes": len(quotes)}
     for status, values in per_status.items():

backend/app/services/supplier_material_service.py

@@ -1,10 +1,6 @@
-"""Supplier ↔ material link service (v2.5) — the direct edge of the new flow.
+"""Supplier ↔ material link service (v2.6/v2.7) — the direct edge of the catalog flow.
 
-Linking a material to a supplier derives materials.category_id from the
-supplier's category when the material has none (first-link-wins). The same
-rule is enforced by the DB trigger trg_supplier_materials_derive_category;
-this service applies it in the application layer so the ORM state is
-consistent inside the same transaction.
+Suppliers can supply any global material across categories.
 """
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
@@ -17,7 +13,7 @@ from app.utils.errors import NotFoundError, ValidationError
 async def link_supplier_material(
     db: AsyncSession, supplier_id, material_id, is_active: bool = True
 ) -> SupplierMaterial:
-    """Upsert a supplier<->material link (idempotent) + derive category (first-link-wins).
+    """Upsert a supplier<->material link (idempotent).
 
     Caller is responsible for the surrounding transaction.
     """
@@ -42,15 +38,11 @@ async def link_supplier_material(
     link = SupplierMaterial(supplier_id=supplier_id, material_id=material_id, is_active=is_active)
     db.add(link)
     await db.flush()
-
-    # First-link-wins: only when the material has no category yet.
-    if material.category_id is None:
-        material.category_id = supplier.category_id
     return link
 
 
 async def unlink_supplier_material(db: AsyncSession, supplier_id, material_id) -> None:
-    """Remove the link. The material's category is NEVER auto-cleared (documented rule)."""
+    """Remove the link."""
     link = await db.scalar(
         select(SupplierMaterial).where(
             SupplierMaterial.supplier_id == supplier_id,

backend/app/utils/preview_token.py

@@ -0,0 +1,71 @@
+"""Ephemeral, URL-safe file-preview tokens.
+
+Why this exists
+---------------
+File downloads require an ``Authorization: Bearer`` header, but a browser
+cannot attach headers to the requests made by ``<iframe src>`` / ``<img
+src>`` — which is what the preview modal uses. The previous workaround
+fetched the bytes with ``fetch`` and rendered a local ``blob:`` URL, but
+download managers (IDM et al.) hook ``blob:`` URLs, fail to resolve them
+outside the originating document, and hand the browser a 0-byte file under
+a bare UUID name — so the preview broke and a junk download appeared.
+
+Instead we mint a short-lived HMAC token scoped to a single attachment and
+put it in the query string, giving the iframe a *real* URL that also
+carries its own authorization. The token is not a session credential: it
+authorises exactly one (quote_id, kind, attachment_id) triple and expires
+in minutes.
+
+Format: ``<expiry-unix>.<hex-hmac>`` over ``"{quote_id}:{kind}:{attachment_id}:{expiry}"``.
+"""
+
+from __future__ import annotations
+
+import hashlib
+import hmac
+import time
+import uuid
+
+from app.config import settings
+
+# پیش‌نمایش کوتاه‌عمر است — فقط برای باز شدن مودال، نه اشتراک‌گذاری لینک
+DEFAULT_TTL_SECONDS = 300
+
+
+def _secret() -> bytes:
+    """Key for the HMAC. Reuses existing secrets so no new config is needed."""
+    base = (
+        settings.CASDOOR_CLIENT_SECRET
+        or settings.MINIO_SECRET_KEY
+        or "procurement-preview-fallback"
+    )
+    return base.encode("utf-8")
+
+
+def _sign(quote_id: uuid.UUID, kind: str, attachment_id: uuid.UUID, expiry: int) -> str:
+    msg = f"{quote_id}:{kind}:{attachment_id}:{expiry}".encode("utf-8")
+    return hmac.new(_secret(), msg, hashlib.sha256).hexdigest()
+
+
+def make_preview_token(
+    quote_id: uuid.UUID, kind: str, attachment_id: uuid.UUID, ttl: int = DEFAULT_TTL_SECONDS
+) -> str:
+    expiry = int(time.time()) + ttl
+    return f"{expiry}.{_sign(quote_id, kind, attachment_id, expiry)}"
+
+
+def verify_preview_token(
+    token: str, quote_id: uuid.UUID, kind: str, attachment_id: uuid.UUID
+) -> bool:
+    """True when the token is well-formed, unexpired and matches this file."""
+    if not token or "." not in token:
+        return False
+    expiry_raw, signature = token.split(".", 1)
+    try:
+        expiry = int(expiry_raw)
+    except ValueError:
+        return False
+    if expiry < int(time.time()):
+        return False
+    expected = _sign(quote_id, kind, attachment_id, expiry)
+    return hmac.compare_digest(expected, signature)

backend/tools/seed.py

@@ -128,6 +128,7 @@ async def get_category(db, slug: str) -> MaterialCategory:
 
 USER_PLAN = [
     # (casdoor username, first, last, role)
+    ("ali.mohaghegh", "علی", "محقق", "admin"),
     ("razaei", "علی", "رضایی", "admin"),
     ("mousavi", "حسین", "موسوی", "procurement_manager"),
     ("mohaghegh", "محمد", "محقق", "pm"),
@@ -209,7 +210,7 @@ async def run() -> None:
             "item_decisions, item_termsheets, termsheet_schedule_steps, termsheets, line_item_specs, "
             "line_items, quotes, supplier_materials, suppliers, brand_materials, "
             "material_attribute_values, materials, brands, warehouses, projects, users, "
-            "category_reference_units, unit_conversions, standard_conversions "
+            "standard_conversions "
             "RESTART IDENTITY CASCADE"
         ))
         # Only the 8 canonical topic categories may exist — any leftover slug
@@ -261,9 +262,7 @@ async def run() -> None:
         material_by_name: dict[str, Material] = {}
         brand_material_by_material: dict[str, object] = {}
         for name, cat_slug, unit_code, brand_name in MATERIALS:
-            cat = await get_category(db, cat_slug)
             material = Material(
-                category_id=cat.id,
                 name=name,
                 canonical_unit_id=unit_ids[unit_code],
                 status="active",
@@ -289,8 +288,10 @@ async def run() -> None:
             await db.flush()
             suppliers.append(sup)
         # last-quoted prices: link each supplier to 2 materials of its category
+        sup_cat_slug = {name: cat_slug for name, cat_slug, *_ in SUPPLIERS}
         for sup in suppliers:
-            cat_materials = [m for m in material_by_name.values() if m.category_id == sup.category_id]
+            target_slug = sup_cat_slug.get(sup.name)
+            cat_materials = [material_by_name[mat_name] for mat_name, c_slug, *_ in MATERIALS if c_slug == target_slug]
             for m in cat_materials[:2]:
                 db.add(SupplierMaterial(
                     supplier_id=sup.id, material_id=m.id, is_active=True,

docker-compose.yml

@@ -289,6 +289,11 @@ services:
         VITE_OPENPANEL_CLIENT_ID: ${OPENPANEL_CLIENT_ID:-}
         VITE_SENTRY_DSN: ${SENTRY_DSN_FRONTEND:-}
     container_name: procurement-frontend
+    # از entrypoint پیش‌فرض image nginx رد می‌شویم: آن اسکریپت `apk manifest`
+    # اجرا می‌کند و اگر دسترسی به مخزن بسته‌ها نباشد بی‌نهایت معلق می‌ماند
+    # (سرویس بالا نمی‌آید و traefik خطای 502 می‌دهد). کانفیگ ما مستقل است و
+    # نیازی به آن اسکریپت‌ها ندارد.
+    entrypoint: ["nginx", "-g", "daemon off;"]
 
     labels:
       - traefik.enable=true

frontend/Dockerfile

@@ -23,9 +23,13 @@ ENV VITE_ENABLE_DEV_LOGIN=${DEV_LOGIN_ENABLED}
 # Empty values disable the feature (analytics.ts is a no-op then).
 ARG VITE_OPENPANEL_URL=""
 ARG VITE_OPENPANEL_CLIENT_ID=""
+# The browser script (op1.js) lives on the dashboard origin, not under the API path,
+# so it needs its own arg — defined here or the value never reaches the bundle.
+ARG VITE_OPENPANEL_SCRIPT_URL=""
 ARG VITE_SENTRY_DSN=""
 ENV VITE_OPENPANEL_URL=${VITE_OPENPANEL_URL} \
     VITE_OPENPANEL_CLIENT_ID=${VITE_OPENPANEL_CLIENT_ID} \
+    VITE_OPENPANEL_SCRIPT_URL=${VITE_OPENPANEL_SCRIPT_URL} \
     VITE_SENTRY_DSN=${VITE_SENTRY_DSN}
 
 # Source code + build

frontend/nginx.conf

@@ -29,6 +29,26 @@ server {
         proxy_set_header X-Forwarded-Proto $scheme;
     }
 
+    # MIME types: the pdf.js worker ships as .mjs, and a browser REFUSES to
+    # start a module worker served as application/octet-stream (nginx's
+    # default for unknown extensions) — which crashes the PDF preview page.
+    # Declared explicitly rather than relying on the system mime.types.
+    types {
+        text/javascript    mjs js;
+        text/css           css;
+        text/html          html;
+        image/svg+xml      svg;
+        image/png          png;
+        image/jpeg         jpg jpeg;
+        image/webp         webp;
+        image/x-icon       ico;
+        font/woff2         woff2;
+        font/woff          woff;
+        application/json   json;
+        application/pdf    pdf;
+        application/wasm   wasm;
+    }
+
     # SPA fallback — all client-side routes go to index.html
     location / {
         try_files $uri $uri/ /index.html;

frontend/package-lock.json

@@ -23,6 +23,7 @@
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
         "lucide-react": "^1.30.0",
+        "pdfjs-dist": "^4.10.38",
         "react": "^19.2.8",
         "react-dom": "^19.2.8",
         "react-hook-form": "^7.85.0",
@@ -174,6 +175,256 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
     },
+    "node_modules/@napi-rs/canvas": {
+      "version": "0.1.100",
+      "resolved": "https://registry.npmmirror.com/@napi-rs/canvas/-/canvas-0.1.100.tgz",
+      "integrity": "sha512-xglYA6q3XO5P3BNJYxVZ1IV7DLVjp1Py6nwag88YntrS+3vKHyYcMqXVS4ZztJmwz2uGvz1FWhI/4LgbR5uQDA==",
+      "license": "MIT",
+      "optional": true,
+      "workspaces": [
+        "e2e/*"
+      ],
+      "engines": {
+        "node": ">= 10"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      },
+      "optionalDependencies": {
+        "@napi-rs/canvas-android-arm64": "0.1.100",
+        "@napi-rs/canvas-darwin-arm64": "0.1.100",
+        "@napi-rs/canvas-darwin-x64": "0.1.100",
+        "@napi-rs/canvas-linux-arm-gnueabihf": "0.1.100",
+        "@napi-rs/canvas-linux-arm64-gnu": "0.1.100",
+        "@napi-rs/canvas-linux-arm64-musl": "0.1.100",
+        "@napi-rs/canvas-linux-riscv64-gnu": "0.1.100",
+        "@napi-rs/canvas-linux-x64-gnu": "0.1.100",
+        "@napi-rs/canvas-linux-x64-musl": "0.1.100",
+        "@napi-rs/canvas-win32-arm64-msvc": "0.1.100",
+        "@napi-rs/canvas-win32-x64-msvc": "0.1.100"
+      }
+    },
+    "node_modules/@napi-rs/canvas-android-arm64": {
+      "version": "0.1.100",
+      "resolved": "https://registry.npmmirror.com/@napi-rs/canvas-android-arm64/-/canvas-android-arm64-0.1.100.tgz",
+      "integrity": "sha512-hjhCKhntPv9+t4ckHymdx0phYNcVW+GKQR6Lzw2zE+pOVjOplSmtx9nNNknTjbEDLcuLZqA1y8ufKg1XfgftzQ==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "android"
+      ],
+      "engines": {
+        "node": ">= 10"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      }
+    },
+    "node_modules/@napi-rs/canvas-darwin-arm64": {
+      "version": "0.1.100",
+      "resolved": "https://registry.npmmirror.com/@napi-rs/canvas-darwin-arm64/-/canvas-darwin-arm64-0.1.100.tgz",
+      "integrity": "sha512-2PcswRaC7Ly645DGt88///zuFDhJxJYdKAs1uU3mfk1atYkXufgcgLfBpk6Tm12nCQBaNt1wpybuPZ4qOhTo8A==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ],
+      "engines": {
+        "node": ">= 10"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      }
+    },
+    "node_modules/@napi-rs/canvas-darwin-x64": {
+      "version": "0.1.100",
+      "resolved": "https://registry.npmmirror.com/@napi-rs/canvas-darwin-x64/-/canvas-darwin-x64-0.1.100.tgz",
+      "integrity": "sha512-ePNZtj7pNIva/siZMg+HmbeozkIjqUIYdoymH8HaA3qK7LfzFN4WMBM8G6HQ9ZC+H3+Dnn5pqtiXpgLykaPOhw==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ],
+      "engines": {
+        "node": ">= 10"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      }
+    },
+    "node_modules/@napi-rs/canvas-linux-arm-gnueabihf": {
+      "version": "0.1.100",
+      "resolved": "https://registry.npmmirror.com/@napi-rs/canvas-linux-arm-gnueabihf/-/canvas-linux-arm-gnueabihf-0.1.100.tgz",
+      "integrity": "sha512-d5cDB48oWFGU8/XPhUOFAlySgb/VAu7D+s8fi55K1Pcfg8aPplHWqMgibhVLU8ky7Pyg/fuiVLz4Nf3JrSTuUA==",
+      "cpu": [
+        "arm"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 10"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      }
+    },
+    "node_modules/@napi-rs/canvas-linux-arm64-gnu": {
+      "version": "0.1.100",
+      "resolved": "https://registry.npmmirror.com/@napi-rs/canvas-linux-arm64-gnu/-/canvas-linux-arm64-gnu-0.1.100.tgz",
+      "integrity": "sha512-rDxgxRu69RvDlX/bh9o22DxLsGr8EqsNgotL9+RwQE1S0b0cqeatqsw6aW45mukm0B42DIAaAacKaYQ8cqS1nw==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 10"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      }
+    },
+    "node_modules/@napi-rs/canvas-linux-arm64-musl": {
+      "version": "0.1.100",
+      "resolved": "https://registry.npmmirror.com/@napi-rs/canvas-linux-arm64-musl/-/canvas-linux-arm64-musl-0.1.100.tgz",
+      "integrity": "sha512-K3mDW66N+xT2/V439u1alFANiBUjdEx2gLiNYnCmUsva5jZMxWTjafBYwTzYK+EMFMHrUoabuU+T1BIP5CgbYQ==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 10"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      }
+    },
+    "node_modules/@napi-rs/canvas-linux-riscv64-gnu": {
+      "version": "0.1.100",
+      "resolved": "https://registry.npmmirror.com/@napi-rs/canvas-linux-riscv64-gnu/-/canvas-linux-riscv64-gnu-0.1.100.tgz",
+      "integrity": "sha512-mooqUBTIsccZpnoQC4NgrC1v6C1vof39etLNMnBwCY+p0gajWJvAHLGQ6g/gGyS5YrpDW+GefSN4+Cvcr08UWw==",
+      "cpu": [
+        "riscv64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 10"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      }
+    },
+    "node_modules/@napi-rs/canvas-linux-x64-gnu": {
+      "version": "0.1.100",
+      "resolved": "https://registry.npmmirror.com/@napi-rs/canvas-linux-x64-gnu/-/canvas-linux-x64-gnu-0.1.100.tgz",
+      "integrity": "sha512-1eCvkDCazm7FFhsT7DfGOdSaHgZVK3bt/dSBl5EWHOWmnz+I7j8tPseJqqD81NF+MH21jKUK4wQSDjN0mdhnTg==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 10"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      }
+    },
+    "node_modules/@napi-rs/canvas-linux-x64-musl": {
+      "version": "0.1.100",
+      "resolved": "https://registry.npmmirror.com/@napi-rs/canvas-linux-x64-musl/-/canvas-linux-x64-musl-0.1.100.tgz",
+      "integrity": "sha512-20arT6lnI19S68qNlii73TSEDbECNgzMz2EpldC1V3mZFuRkeujXkcebRk0LRJe9SEUAooYiLokfMViY8IX7yA==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 10"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      }
+    },
+    "node_modules/@napi-rs/canvas-win32-arm64-msvc": {
+      "version": "0.1.100",
+      "resolved": "https://registry.npmmirror.com/@napi-rs/canvas-win32-arm64-msvc/-/canvas-win32-arm64-msvc-0.1.100.tgz",
+      "integrity": "sha512-DZFFT1wIAg37LJw37yhMRFfjATd3vTQzjZ1Yki8u2vhO6Hi5VE6BVaGQ1aaDu7xb4iMErz+9EOwjpS7xcxFeBw==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">= 10"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      }
+    },
+    "node_modules/@napi-rs/canvas-win32-x64-msvc": {
+      "version": "0.1.100",
+      "resolved": "https://registry.npmmirror.com/@napi-rs/canvas-win32-x64-msvc/-/canvas-win32-x64-msvc-0.1.100.tgz",
+      "integrity": "sha512-MyT1j3mHC2+Lu4pBi9mKyMJhtP6U7k7EldY7sj/uS5gJA65gTXt8MefJQXLJo5d/vZbuWmfxzkEUNc/urV3pHA==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">= 10"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Brooooooklyn"
+      }
+    },
     "node_modules/@openpanel/sdk": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/@openpanel/sdk/-/sdk-1.3.1.tgz",
@@ -2299,6 +2550,18 @@
         }
       }
     },
+    "node_modules/pdfjs-dist": {
+      "version": "4.10.38",
+      "resolved": "https://registry.npmmirror.com/pdfjs-dist/-/pdfjs-dist-4.10.38.tgz",
+      "integrity": "sha512-/Y3fcFrXEAsMjJXeL9J8+ZG9U01LbuWaYypvDW2ycW1jL269L3js3DVBjDJ0Up9Np1uqDXsDrRihHANhZOlwdQ==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=20"
+      },
+      "optionalDependencies": {
+        "@napi-rs/canvas": "^0.1.65"
+      }
+    },
     "node_modules/picocolors": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz",

frontend/package.json

@@ -10,7 +10,6 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "@sentry/react": "^10.0.0",
     "@dnd-kit/core": "^6.3.1",
     "@dnd-kit/utilities": "^3.2.2",
     "@hookform/resolvers": "3.10",
@@ -20,11 +19,13 @@
     "@radix-ui/react-label": "^2.1.15",
     "@radix-ui/react-select": "^2.3.7",
     "@radix-ui/react-slot": "^1.3.3",
+    "@sentry/react": "^10.0.0",
     "@tailwindcss/vite": "^4.3.3",
     "@tanstack/react-query": "^5.101.4",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "lucide-react": "^1.30.0",
+    "pdfjs-dist": "^4.10.38",
     "react": "^19.2.8",
     "react-dom": "^19.2.8",
     "react-hook-form": "^7.85.0",

frontend/src/components/Combobox.tsx

@@ -25,6 +25,9 @@ export interface ComboboxProps {
   onAdd?: (val: string) => void;
   onInputChange?: (val: string) => void;
   onBlur?: () => void;
+  // با false، فوکوسِ برنامه‌ای (مثل فوکوسِ خودکار Dialog) منو را باز نمی‌کند —
+  // فقط کلیک یا تایپِ صریح کاربر بازش می‌کند.
+  openOnFocus?: boolean;
 }
 
 function toItem(x: ComboboxSourceItem): ComboboxItem {
@@ -49,6 +52,7 @@ export function Combobox({
   onAdd,
   onInputChange,
   onBlur,
+  openOnFocus = true,
 }: ComboboxProps) {
   const [text, setText] = useState(value ?? "");
   const [open, setOpen] = useState(false);
@@ -132,9 +136,13 @@ export function Combobox({
         onChange={(e) => {
           setText(e.target.value);
           setHighlight(-1);
+          if (!open) setOpen(true);
           onInputChange?.(e.target.value);
         }}
-        onFocus={() => setOpen(true)}
+        onFocus={() => {
+          if (openOnFocus) setOpen(true);
+        }}
+        onClick={() => setOpen(true)}
         onBlur={onBlur}
         onKeyDown={onKeyDown}
       />

frontend/src/components/FileList.tsx

@@ -1,6 +1,8 @@
-import { useRef } from "react";
+import { useRef, useState } from "react";
 import { toast } from "sonner";
+import { Eye, Download, Trash2, FileText, Image as ImageIcon } from "lucide-react";
 import type { Attachment } from "../lib/types";
+import { FilePreviewModal, isImageFile, isPdfFile } from "./FilePreviewModal";
 
 export interface FileListProps {
   files: Attachment[];
@@ -11,12 +13,25 @@ export interface FileListProps {
   onDelete?: (a: Attachment) => void;
   // دانلود احراز هویت‌شده (توکن Bearer + blob — لینک خام توکن نمی‌فرستد)
   onDownload?: (a: Attachment) => void | Promise<void>;
+  // آدرس blob احراز هویت‌شده برای پیش‌نمایش. مودال پیش‌نمایش با objectURL
+  // محلی کار می‌کند چون <img>/<iframe> نمی‌توانند توکن بفرستند.
+  loadPreview?: (a: Attachment) => Promise<string>;
   label?: string;
 }
 
-// مدیریت چند فاکتور: آپلود مستقیم به سرور (MinIO) + دانلود/حذف فایل‌های ذخیره‌شده
-export function FileList({ files, onChange, upload, onDelete, onDownload, label = "افزودن فاکتور" }: FileListProps) {
+// مدیریت چند فاکتور: آپلود مستقیم، پیش‌نمایش آنلاین تصویر/PDF و دانلود
+export function FileList({
+  files,
+  onChange,
+  upload,
+  onDelete,
+  onDownload,
+  loadPreview,
+  label = "افزودن فاکتور",
+}: FileListProps) {
   const inputRef = useRef<HTMLInputElement | null>(null);
+  const [previewItem, setPreviewItem] = useState<{ url: string; name: string } | null>(null);
+  const [loadingPreview, setLoadingPreview] = useState<string | null>(null);
 
   const remove = (i: number) => {
     const removed = files[i];
@@ -39,31 +54,108 @@ export function FileList({ files, onChange, upload, onDelete, onDownload, label
     if (added.length) onChange([...files, ...added]);
   };
 
+  // پیش‌نمایش: یک URL امضاشده‌ی کوتاه‌عمر می‌گیریم (نه blob) تا
+  // دانلودمنیجرها آن را شکار نکنند و <iframe>/<img> درست بارگذاری شود.
+  const handleOpenPreview = async (inv: Attachment) => {
+    if (!loadPreview) return;
+    if (!inv.id) {
+      toast.error("فایل هنوز به طور کامل در سرور ذخیره نشده است");
+      return;
+    }
+    setLoadingPreview(inv.id);
+    try {
+      const url = await loadPreview(inv);
+      setPreviewItem({ url, name: inv.name });
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : "بارگذاری پیش‌نمایش ناموفق بود");
+    } finally {
+      setLoadingPreview(null);
+    }
+  };
+
+  const closePreview = () => setPreviewItem(null);
+
   return (
-    <div>
-      {!files.length && <div className="inv-empty">هنوز فایلی انتخاب نشده است.</div>}
-      {files.map((inv, i) => (
-        <div key={i} className="inv-row">
-          <span className="inv-name">📎 {inv.name}</span>
-          {onDownload && (
-            <button
-              type="button"
-              className="inv-open"
-              title="دانلود"
-              onClick={() => {
-                Promise.resolve(onDownload(inv)).catch((err) =>
-                  toast.error(err instanceof Error ? err.message : "دانلود فایل ناموفق بود"),
-                );
-              }}
-            >
-              ↓
-            </button>
-          )}
-          <button type="button" className="inv-x" title="حذف" onClick={() => remove(i)}>
-            ×
-          </button>
+    <div className="space-y-2">
+      {!files.length && (
+        <div className="rounded-lg border border-dashed border-gray-200 bg-gray-50/60 p-3 text-center text-xs text-gray-500">
+          هنوز فاکتور یا سندی بارگذاری نشده است.
         </div>
-      ))}
+      )}
+
+      {files.length > 0 && (
+        <div className="flex flex-col gap-1.5">
+          {files.map((inv, i) => {
+            const canPreview = !!loadPreview && !!inv.id;
+            const isLoading = !!inv.id && loadingPreview === inv.id;
+
+            return (
+              <div
+                key={inv.id || i}
+                className="flex items-center justify-between rounded-lg border border-gray-200 bg-white px-3 py-2 text-xs transition-colors hover:border-gray-300 shadow-xs"
+              >
+                {/* نام و آیکون فایل — با قابلیت کلیک برای پیش‌نمایش */}
+                <div
+                  className={`flex items-center gap-2 min-w-0 flex-1 ${canPreview ? "cursor-pointer group" : ""}`}
+                  onClick={() => canPreview && void handleOpenPreview(inv)}
+                  title={canPreview ? "مشاهده پیش‌نمایش" : inv.name}
+                >
+                  {isImageFile(inv.name) ? (
+                    <ImageIcon className="h-4 w-4 shrink-0 text-blue-600" />
+                  ) : isPdfFile(inv.name) ? (
+                    <FileText className="h-4 w-4 shrink-0 text-rose-600" />
+                  ) : (
+                    <FileText className="h-4 w-4 shrink-0 text-gray-400" />
+                  )}
+                  <span className="truncate font-medium text-gray-700 group-hover:text-blue-600 transition-colors">
+                    {inv.name}
+                  </span>
+                </div>
+
+                {/* دکمه‌های عملیات: پیش‌نمایش، دانلود، حذف */}
+                <div className="flex items-center gap-1 shrink-0 me-1">
+                  {canPreview && (
+                    <button
+                      type="button"
+                      onClick={() => void handleOpenPreview(inv)}
+                      disabled={isLoading}
+                      className="flex h-7 w-7 items-center justify-center rounded-md text-gray-500 hover:bg-blue-50 hover:text-blue-600 transition-colors disabled:opacity-50"
+                      title="مشاهده فاکتور"
+                    >
+                      <Eye className="h-3.5 w-3.5" />
+                    </button>
+                  )}
+
+                  {onDownload && (
+                    <button
+                      type="button"
+                      onClick={() => {
+                        Promise.resolve(onDownload(inv)).catch((err) =>
+                          toast.error(err instanceof Error ? err.message : "دانلود فایل ناموفق بود"),
+                        );
+                      }}
+                      className="flex h-7 w-7 items-center justify-center rounded-md text-gray-500 hover:bg-gray-100 hover:text-gray-900 transition-colors"
+                      title="دانلود فایل"
+                    >
+                      <Download className="h-3.5 w-3.5" />
+                    </button>
+                  )}
+
+                  <button
+                    type="button"
+                    className="flex h-7 w-7 items-center justify-center rounded-md text-gray-400 hover:bg-red-50 hover:text-red-600 transition-colors"
+                    title="حذف فایل"
+                    onClick={() => remove(i)}
+                  >
+                    <Trash2 className="h-3.5 w-3.5" />
+                  </button>
+                </div>
+              </div>
+            );
+          })}
+        </div>
+      )}
+
       <div>
         <input
           ref={inputRef}
@@ -73,10 +165,20 @@ export function FileList({ files, onChange, upload, onDelete, onDownload, label
           className="hidden"
           onChange={handleChange}
         />
-        <button type="button" className="btn-line-file" onClick={() => inputRef.current?.click()}>
-          ＋ {label}
+        <button
+          type="button"
+          className="inline-flex items-center gap-1.5 rounded-lg border border-dashed border-gray-300 bg-white px-3 py-1.5 text-xs font-semibold text-gray-700 hover:border-blue-500 hover:bg-blue-50/40 hover:text-blue-600 transition-all"
+          onClick={() => inputRef.current?.click()}
+        >
+          <span>＋</span>
+          <span>{label}</span>
         </button>
       </div>
+
+      {/* مودال پیش‌نمایش — کامپوننت مشترک با کارت پیشنهاد در داشبورد */}
+      {previewItem && (
+        <FilePreviewModal url={previewItem.url} name={previewItem.name} onClose={closePreview} />
+      )}
     </div>
   );
 }

frontend/src/components/FilePreviewModal.tsx

@@ -0,0 +1,148 @@
+import { useState } from "react";
+import { PdfCanvas } from "./PdfCanvas";
+import { X, FileText, Image as ImageIcon, ExternalLink } from "lucide-react";
+
+export const isImageFile = (name: string = "") => {
+  return /\.(jpe?g|png|webp|gif|svg|bmp)$/i.test(name.toLowerCase());
+};
+
+export const isPdfFile = (name: string = "") => {
+  return /\.pdf$/i.test(name.toLowerCase());
+};
+
+/**
+ * آیا مرورگر می‌تواند PDF را درون‌خطی نشان دهد؟
+ *
+ * دسکتاپ: بله (نمایشگر بومی) → <iframe> کافی است و بهترین تجربه را دارد.
+ * شبیه‌سازی موبایل/اندروید: پلاگین PDF وجود ندارد؛ <iframe> به دانلود
+ * منتهی می‌شود، پس آنجا pdf.js استفاده می‌کنیم.
+ */
+export function canRenderPdfNatively(): boolean {
+  if (typeof navigator === "undefined") return true;
+  const ua = navigator.userAgent || "";
+  const mobile = /Android|iPhone|iPad|iPod|Mobile/i.test(ua);
+  // pdfViewerEnabled در Chromium/Firefox وجود دارد و دقیق‌ترین معیار است
+  const pdfViewer = (navigator as { pdfViewerEnabled?: boolean }).pdfViewerEnabled;
+  if (typeof pdfViewer === "boolean") return pdfViewer && !mobile;
+  return !mobile;
+}
+
+export interface FilePreviewModalProps {
+  // آدرس امضاشده‌ی کوتاه‌عمر — چون <img>/<iframe> نمی‌توانند هدر توکن بفرستند
+  url: string;
+  name: string;
+  onClose: () => void;
+}
+
+/**
+ * مودال پیش‌نمایش فایل — مشترک بین لیست پیوست‌ها (FileList) و کارت پیشنهاد
+ * در داشبورد. تصویر با <img> و PDF با pdf.js روی canvas رسم می‌شود (بدون
+ * وابستگی به پلاگین PDF مرورگر، که در شبیه‌سازی موبایل وجود ندارد)؛ سایر
+ * فرمت‌ها فقط دکمه‌ی دانلود دارند.
+ */
+export function FilePreviewModal({ url, name, onClose }: FilePreviewModalProps) {
+  return (
+    <div
+      className="fixed inset-0 z-[80] flex items-center justify-center bg-black/60 p-3 sm:p-5 backdrop-blur-xs animate-in fade-in duration-200"
+      onClick={onClose}
+    >
+      <div
+        className="flex flex-col w-full max-w-4xl max-h-[90vh] rounded-2xl border border-gray-200 bg-white shadow-2xl overflow-hidden"
+        onClick={(e) => e.stopPropagation()}
+      >
+        {/* هدر پیش‌نمایش */}
+        <div className="flex items-center justify-between border-b border-gray-100 px-4 py-3 bg-white">
+          <div className="flex items-center gap-2 min-w-0">
+            {isImageFile(name) ? (
+              <ImageIcon className="h-4 w-4 shrink-0 text-blue-600" />
+            ) : (
+              <FileText className="h-4 w-4 shrink-0 text-rose-600" />
+            )}
+            <span className="text-xs sm:text-sm font-bold text-gray-900 truncate">{name}</span>
+          </div>
+
+          <div className="flex items-center gap-1.5 shrink-0">
+            <a
+              href={url}
+              target="_blank"
+              rel="noreferrer"
+              className="flex h-7 w-7 items-center justify-center rounded-lg border border-gray-200 text-gray-600 hover:bg-gray-50 hover:text-gray-900 transition-colors shadow-2xs"
+              title="باز کردن در برگه جدید"
+            >
+              <ExternalLink className="h-3.5 w-3.5" />
+            </a>
+
+            <button
+              type="button"
+              onClick={onClose}
+              className="flex h-7 w-7 items-center justify-center rounded-lg text-gray-400 hover:bg-gray-100 hover:text-gray-700 transition-colors ms-1"
+              title="بستن"
+            >
+              <X className="h-4 w-4" />
+            </button>
+          </div>
+        </div>
+
+        {/* بدنه نمایش فایل */}
+        <div className="flex-1 overflow-auto p-3 sm:p-4 bg-gray-50/70 flex items-center justify-center min-h-[300px]">
+          {isImageFile(name) ? (
+            <img
+              src={url}
+              alt={name}
+              className="max-h-[75vh] w-auto max-w-full rounded-lg object-contain shadow-xs border border-gray-200 bg-white"
+            />
+          ) : isPdfFile(name) ? (
+            // روی دسکتاپ نمایشگر بومی مرورگر بهترین نتیجه را می‌دهد؛ در
+            // شبیه‌سازی موبایل پلاگین PDF وجود ندارد، پس آنجا pdf.js روی
+            // canvas رسم می‌کند. انتخاب در زمان اجرا با تشخیص قابلیت.
+            canRenderPdfNatively() ? (
+              <iframe
+                src={url}
+                title={name}
+                className="h-[75vh] w-full rounded-lg border border-gray-200 bg-white shadow-xs"
+              />
+            ) : (
+              <PdfCanvas url={url} className="w-full" />
+            )
+          ) : (
+            <div className="flex flex-col items-center justify-center gap-3 p-8 text-center bg-white rounded-xl border border-gray-200 shadow-xs">
+              <FileText className="h-12 w-12 text-gray-400" />
+              <div className="text-xs text-gray-600">
+                امکان نمایش پیش‌نمایش زنده برای این فرمت فایل وجود ندارد.
+              </div>
+            </div>
+          )}
+        </div>
+      </div>
+    </div>
+  );
+}
+
+/**
+ * هوک مدیریت پیش‌نمایش: بارگذاری blob احراز هویت‌شده + آزادسازی objectURL.
+ * خروجی برای رندر <FilePreviewModal> آماده است.
+ */
+/**
+ * هوک مدیریت پیش‌نمایش: گرفتن URL امضاشده و نگه‌داشتن آن برای مودال.
+ * URL یک آدرس واقعی است (نه blob) تا دانلودمنیجرها آن را نشکنند؛ پس
+ * نیازی به آزادسازی objectURL نیست.
+ */
+export function useFilePreview(load: (id: string, name: string) => Promise<string>) {
+  const [item, setItem] = useState<{ url: string; name: string } | null>(null);
+  const [loadingId, setLoadingId] = useState<string | null>(null);
+
+  const open = async (id: string, name: string) => {
+    if (!id) return;
+    setLoadingId(id);
+    try {
+      const url = await load(id, name);
+      setItem({ url, name });
+    } finally {
+      setLoadingId(null);
+    }
+  };
+
+  const close = () => setItem(null);
+
+  return { item, loadingId, open, close };
+}

frontend/src/components/MilestoneRow.tsx

@@ -12,15 +12,19 @@ export interface MilestoneRowProps {
 // یک ردیف مرحله‌ی پرداخت: تاریخ + مبلغ + دکمه‌ی حذف
 export function MilestoneRow({ milestone, onChange, onRemove, disabled = false }: MilestoneRowProps) {
   return (
-    <div className="milestone-row">
-      <JalaliDatePicker
-        value={milestone.when_iso}
-        onChange={(iso) => onChange({ ...milestone, when_iso: iso })}
-        placeholder="تاریخ"
-        className="w-36 shrink-0"
-        disabled={disabled}
-      />
-      <div className="ms-amount-wrap">
+    <div className="flex items-start gap-3 w-full my-2">
+      {/* کادر انتخاب تاریخ */}
+      <div className="w-36 shrink-0">
+        <JalaliDatePicker
+          value={milestone.when_iso}
+          onChange={(iso) => onChange({ ...milestone, when_iso: iso })}
+          placeholder="تاریخ"
+          disabled={disabled}
+        />
+      </div>
+
+      {/* کادر ورود مبلغ و حروف زیر آن */}
+      <div className="flex-1 min-w-0">
         <NumberInput
           value={milestone.amount}
           onChange={(amount) => onChange({ ...milestone, amount })}
@@ -29,11 +33,18 @@ export function MilestoneRow({ milestone, onChange, onRemove, disabled = false }
           disabled={disabled}
         />
       </div>
+
+      {/* دکمه حذف */}
       {!disabled && (
-        <button type="button" className="ms-x" title="حذف" onClick={onRemove}>
+        <button
+          type="button"
+          className="mt-2 text-red-500 hover:text-red-700 text-lg font-bold shrink-0 px-1 transition-colors"
+          title="حذف"
+          onClick={onRemove}
+        >
           ×
         </button>
       )}
     </div>
   );
-}
+}

frontend/src/components/PdfCanvas.tsx

@@ -0,0 +1,125 @@
+import { useEffect, useRef, useState } from "react";
+
+/**
+ * نمایشگر PDF با pdf.js (canvas) به‌جای <iframe>.
+ *
+ * چرا: کروم در حالت شبیه‌سازی موبایل (F12) پلاگین PDF درون‌خطی ندارد، پس
+ * <iframe src="...pdf"> را به‌جای نمایش، دانلود می‌کند — که دانلودمنیجرها
+ * شکارش می‌کنند و پیش‌نمایش خالی می‌ماند. با رسم روی canvas هیچ ناوبری‌ای
+ * به آدرس فایل انجام نمی‌شود، پس نه به پلاگین مرورگر وابسته‌ایم و نه چیزی
+ * برای دانلودمنیجر باقی می‌ماند.
+ */
+interface PdfCanvasProps {
+  url: string;
+  className?: string;
+}
+
+export function PdfCanvas({ url, className }: PdfCanvasProps) {
+  const canvasRef = useRef<HTMLCanvasElement | null>(null);
+  const [error, setError] = useState<string | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [pageCount, setPageCount] = useState(0);
+
+  useEffect(() => {
+    let cancelled = false;
+    let doc: { destroy: () => void } | null = null;
+
+    (async () => {
+      setLoading(true);
+      setError(null);
+      try {
+        // بارگذاری تنبل: pdf.js فقط وقتی پیش‌نمایش PDF باز می‌شود دانلود می‌شود
+        const pdfjs = await import("pdfjs-dist");
+        // فقط workerSrc ست می‌شود — ست‌کردن هم‌زمان workerPort باعث تعارض
+        // می‌شد و بارگذاری سند در حلقه گیر می‌کرد («در حال بارگذاری…»).
+        // فایل worker با پسوند .mjs سرو می‌شود و nginx آن را
+        // text/javascript اعلام می‌کند (وگرنه مرورگر worker را رد می‌کند).
+        const workerUrl = (await import("pdfjs-dist/build/pdf.worker.min.mjs?url")).default;
+        pdfjs.GlobalWorkerOptions.workerSrc = workerUrl;
+
+        // بایت‌ها را خودمان با fetch می‌گیریم و به pdf.js به‌صورت داده
+        // می‌دهیم، به‌جای اینکه pdf.js خودش آدرس را بگیرد. دلیل: دانلودمنیجر
+        // (IDM) درخواست pdf.js به آدرس PDF را می‌رباید و با 204 برمی‌گرداند
+        // («Unexpected server response (204)»). با داده‌ی درون‌حافظه هیچ
+        // درخواست قابل‌ربودنی برای دانلودمنیجر باقی نمی‌ماند.
+        const res = await fetch(url, { credentials: "omit" });
+        if (!res.ok) throw new Error(`دریافت فایل ناموفق بود (${res.status})`);
+        const bytes = new Uint8Array(await res.arrayBuffer());
+
+        const task = pdfjs.getDocument({ data: bytes });
+        // اگر worker/شبکه در دسترس نباشد، به‌جای چرخ «در حال بارگذاری…»
+        // بی‌پایان، خطای قابل‌فهم نشان بده.
+        const loaded = await Promise.race([
+          task.promise,
+          new Promise<never>((_, reject) =>
+            setTimeout(() => reject(new Error("زمان بارگذاری PDF به پایان رسید")), 20000),
+          ),
+        ]);
+        doc = loaded as unknown as { destroy: () => void };
+        if (cancelled) return;
+
+        setPageCount(loaded.numPages);
+
+        // فعلاً صفحه‌ی اول — برای پیش‌نمایشِ سریع کافی است
+        const page = await loaded.getPage(1);
+        if (cancelled) return;
+
+        const canvas = canvasRef.current;
+        if (!canvas) return;
+
+        // مقیاس بر اساس عرض ظرف، با در نظر گرفتن devicePixelRatio برای وضوح
+        const containerWidth = canvas.parentElement?.clientWidth || 800;
+        const baseViewport = page.getViewport({ scale: 1 });
+        const dpr = window.devicePixelRatio || 1;
+        const scale = Math.min((containerWidth - 2) / baseViewport.width, 2) * dpr;
+        const viewport = page.getViewport({ scale });
+
+        canvas.width = Math.floor(viewport.width);
+        canvas.height = Math.floor(viewport.height);
+        canvas.style.width = `${Math.floor(viewport.width / dpr)}px`;
+        canvas.style.height = `${Math.floor(viewport.height / dpr)}px`;
+
+        const ctx = canvas.getContext("2d");
+        if (!ctx) return;
+        await page.render({ canvasContext: ctx, viewport }).promise;
+        if (!cancelled) setLoading(false);
+      } catch (err) {
+        if (!cancelled) {
+          setLoading(false);
+          setError(err instanceof Error ? err.message : "نمایش PDF ناموفق بود");
+        }
+      }
+    })();
+
+    return () => {
+      cancelled = true;
+      try {
+        doc?.destroy();
+      } catch {
+        /* نادیده بگیر */
+      }
+    };
+  }, [url]);
+
+  return (
+    <div className={className}>
+      {loading && !error && (
+        <div className="flex items-center justify-center p-8 text-xs text-gray-500">در حال بارگذاری…</div>
+      )}
+      {error ? (
+        <div className="flex flex-col items-center justify-center gap-3 p-8 text-center">
+          <div className="text-xs text-gray-600">نمایش پیش‌نمایش ممکن نشد: {error}</div>
+        </div>
+      ) : (
+        <>
+          <canvas ref={canvasRef} className="mx-auto block max-w-full rounded-lg border border-gray-200 bg-white shadow-xs" />
+          {pageCount > 1 && (
+            <div className="mt-2 text-center text-[11px] text-gray-500">
+              صفحه ۱ از {pageCount}
+            </div>
+          )}
+        </>
+      )}
+    </div>
+  );
+}

frontend/src/components/StatsBar.tsx

@@ -1,15 +1,27 @@
-import { ClipboardList, Inbox, CheckCircle2, Timer, type LucideIcon } from "lucide-react";
+import { ClipboardList, Inbox, CheckCircle2, PackageCheck, type LucideIcon } from "lucide-react";
 import { fmtNum } from "../lib/formatters";
 
+export type StatusFilter = "all" | "offered" | "accepted" | "arrived";
+
 export interface StatsBarProps {
   total: number;
   offered: number;
   accepted: number;
-  avgLeadTime: number | null; // روز
+  arrived: number;
+  activeFilter?: StatusFilter;
+  onFilterChange?: (filter: StatusFilter) => void;
 }
 
-export function StatsBar({ total, offered, accepted, avgLeadTime }: StatsBarProps) {
+export function StatsBar({
+  total,
+  offered,
+  accepted,
+  arrived,
+  activeFilter = "all",
+  onFilterChange,
+}: StatsBarProps) {
   const stats: {
+    key: StatusFilter;
     label: string;
     shortLabel: string;
     value: string;
@@ -18,6 +30,7 @@ export function StatsBar({ total, offered, accepted, avgLeadTime }: StatsBarProp
     icon: LucideIcon;
   }[] = [
     {
+      key: "all",
       label: "کل پیشنهادها",
       shortLabel: "کل",
       value: fmtNum(total),
@@ -25,6 +38,7 @@ export function StatsBar({ total, offered, accepted, avgLeadTime }: StatsBarProp
       icon: ClipboardList,
     },
     {
+      key: "offered",
       label: "پیشنهاد باز",
       shortLabel: "باز",
       value: fmtNum(offered),
@@ -32,6 +46,7 @@ export function StatsBar({ total, offered, accepted, avgLeadTime }: StatsBarProp
       icon: Inbox,
     },
     {
+      key: "accepted",
       label: "پذیرفته‌شده",
       shortLabel: "پذیرفته",
       value: fmtNum(accepted),
@@ -39,48 +54,69 @@ export function StatsBar({ total, offered, accepted, avgLeadTime }: StatsBarProp
       icon: CheckCircle2,
     },
     {
-      label: "میانگین زمان تحویل",
-      shortLabel: "میانگین تحویل",
-      value: avgLeadTime == null ? "—" : fmtNum(avgLeadTime),
-      unit: avgLeadTime != null ? "روز" : undefined,
+      key: "arrived",
+      label: "تحویل‌شده به کارگاه",
+      shortLabel: "تحویل",
+      value: fmtNum(arrived),
       color: "text-green",
-      icon: Timer,
+      icon: PackageCheck,
     },
   ];
 
+  const handleClick = (key: StatusFilter) => {
+    if (!onFilterChange) return;
+    if (key === "all") {
+      onFilterChange("all");
+    } else {
+      onFilterChange(activeFilter === key ? "all" : key);
+    }
+  };
+
   return (
     <section className="grid grid-cols-4 gap-1.5 sm:gap-3">
-      {stats.map((s) => (
-        <div
-          key={s.label}
-          className="rounded-xl border border-line bg-panel p-2 text-center transition-colors hover:border-accent/40 sm:rounded-lg sm:p-3.5 sm:text-right"
-        >
-          {/* عنوان کارت */}
-          <div className="flex items-center justify-center sm:justify-between">
-            <span className="truncate text-[10px] font-medium text-muted sm:text-[11px]">
-              <span className="sm:hidden">{s.shortLabel}</span>
-              <span className="hidden sm:inline">{s.label}</span>
-            </span>
+      {stats.map((s) => {
+        const isClickable = Boolean(onFilterChange);
+        const isActive = activeFilter === s.key;
 
-            {/* آیکون در دسکتاپ */}
-            <span className="hidden h-6 w-6 shrink-0 items-center justify-center rounded-md bg-slate-bg text-muted sm:flex">
-              <s.icon className="h-3.5 w-3.5" strokeWidth={2} />
-            </span>
-          </div>
-
-          {/* مقدار عددی به همراه واحد روز */}
+        return (
           <div
-            className={`mt-0.5 flex items-baseline justify-center sm:justify-start gap-1 text-base font-extrabold leading-5 tabular-nums sm:mt-1 sm:text-[22px] sm:leading-8 ${s.color}`}
+            key={s.label}
+            onClick={() => handleClick(s.key)}
+            className={`rounded-xl border p-2 text-center transition-all sm:rounded-lg sm:p-3.5 sm:text-right ${
+              isClickable ? "cursor-pointer select-none" : ""
+            } ${
+              isActive
+                ? "border-accent ring-2 ring-accent/20 bg-accent/5 shadow-sm"
+                : "border-line bg-panel hover:border-accent/40"
+            }`}
           >
-            <span>{s.value}</span>
-            {s.unit && (
-              <span className="text-[10px] font-medium text-muted sm:text-xs">
-                {s.unit}
+            {/* عنوان کارت */}
+            <div className="flex items-center justify-center sm:justify-between">
+              <span className="truncate text-[10px] font-medium text-muted sm:text-[11px]">
+                <span className="sm:hidden">{s.shortLabel}</span>
+                <span className="hidden sm:inline">{s.label}</span>
               </span>
-            )}
+
+              {/* آیکون در دسکتاپ */}
+              <span className="hidden h-6 w-6 shrink-0 items-center justify-center rounded-md bg-slate-bg text-muted sm:flex">
+                <s.icon className="h-3.5 w-3.5" strokeWidth={2} />
+              </span>
+            </div>
+
+            {/* مقدار عددی */}
+            <div
+              className={`mt-0.5 flex items-baseline justify-center sm:justify-start gap-1 text-base font-extrabold leading-5 tabular-nums sm:mt-1 sm:text-[22px] sm:leading-8 ${s.color}`}
+            >
+              <span>{s.value}</span>
+              {s.unit && (
+                <span className="text-[10px] font-medium text-muted sm:text-xs">
+                  {s.unit}
+                </span>
+              )}
+            </div>
           </div>
-        </div>
-      ))}
+        );
+      })}
     </section>
   );
 }

frontend/src/hooks/index.ts

@@ -3,11 +3,4 @@ export { useQuotes, useCreateQuote, useUpdateQuote, useDeleteQuote } from "./use
 export { useSuppliers, useAddSupplier, useUpdateSupplier, useRemoveSupplier } from "./useSuppliers";
 export { useMaterials, useAddMaterial } from "./useMaterials";
 export { useProjects, useAddProject } from "./useProjects";
-export {
-  useUnits,
-  useSaveRefUnit,
-  useSaveConversion,
-  useDeleteConversion,
-  useSaveStandardConversion,
-  useDeleteStandardConversion,
-} from "./useUnits";
+export { useUnits, useSaveStandardConversion, useDeleteStandardConversion } from "./useUnits";

frontend/src/hooks/useUnits.ts

@@ -1,52 +1,16 @@
 // ============================================================
-// hooks واحدها — واحد مرجع، ضرایب دسته‌ای و ثابت
+// hooks واحدها — تبدیل‌های ثابت جهانی (دسته‌ای‌ها حذف شدند)
 // ============================================================
 
 import { useMutation } from "@tanstack/react-query";
-import type { CategoryUnit, StandardConversion, UnitConversion } from "../lib/types";
+import type { StandardConversion } from "../lib/types";
 import { api } from "../lib/api";
 import { useAppStore } from "../store";
 import { useInvalidateStore } from "./useStoreData";
 
-export function useUnits(): {
-  categoryUnits: CategoryUnit[];
-  unitConversions: UnitConversion[];
-  standardConversions: StandardConversion[];
-} {
-  const categoryUnits = useAppStore((s) => s.categoryUnits);
-  const unitConversions = useAppStore((s) => s.unitConversions);
+export function useUnits(): { standardConversions: StandardConversion[] } {
   const standardConversions = useAppStore((s) => s.standardConversions);
-  return { categoryUnits, unitConversions, standardConversions };
-}
-
-export function useSaveRefUnit() {
-  const setCategoryUnit = useAppStore((s) => s.setCategoryUnit);
-  const invalidate = useInvalidateStore();
-  return useMutation({
-    mutationFn: (cu: CategoryUnit) => api.units.saveCategoryUnit(cu),
-    onMutate: (cu) => setCategoryUnit(cu),
-    onSettled: () => invalidate(),
-  });
-}
-
-export function useSaveConversion() {
-  const setConversion = useAppStore((s) => s.setConversion);
-  const invalidate = useInvalidateStore();
-  return useMutation({
-    mutationFn: (c: UnitConversion) => api.units.saveConversion(c),
-    onMutate: (c) => setConversion(c),
-    onSettled: () => invalidate(),
-  });
-}
-
-export function useDeleteConversion() {
-  const deleteConversion = useAppStore((s) => s.deleteConversion);
-  const invalidate = useInvalidateStore();
-  return useMutation({
-    mutationFn: (id: string) => api.units.deleteConversion(id),
-    onMutate: (id) => deleteConversion(id),
-    onSettled: () => invalidate(),
-  });
+  return { standardConversions };
 }
 
 export function useSaveStandardConversion() {

frontend/src/lib/analytics.ts

@@ -22,8 +22,31 @@ declare global {
 
 const OPENPANEL_URL = (import.meta.env?.VITE_OPENPANEL_URL as string | undefined)?.trim();
 const OPENPANEL_CLIENT_ID = (import.meta.env?.VITE_OPENPANEL_CLIENT_ID as string | undefined)?.trim();
+const OPENPANEL_SCRIPT_URL = (import.meta.env?.VITE_OPENPANEL_SCRIPT_URL as string | undefined)?.trim();
 const SENTRY_DSN = (import.meta.env?.VITE_SENTRY_DSN as string | undefined)?.trim();
 
+/**
+ * Load the OpenPanel browser script (op1.js) and its queueing shim.
+ *
+ * The shim is OpenPanel's documented snippet: `window.op` becomes a queue while the
+ * script is in flight, so `op("init", …)` can be called immediately and the real
+ * script drains the queue on load. Without it, every `window.op?.()` call here is a
+ * silent no-op — which is what happened before this loader existed.
+ */
+function loadOpenPanelScript(src: string): void {
+  if (document.querySelector("script[data-openpanel]")) return;
+  const shim = document.createElement("script");
+  shim.textContent =
+    'window.op=window.op||function(){var n=[];return new Proxy(function(){arguments.length&&n.push([].slice.call(arguments))},{get:function(t,r){return"q"===r?n:function(){n.push([r].concat([].slice.call(arguments)))}},has:function(t,r){return"q"===r}}) }();';
+  document.head.appendChild(shim);
+  const script = document.createElement("script");
+  script.src = src;
+  script.async = true;
+  script.defer = true;
+  script.dataset.openpanel = "1";
+  document.head.appendChild(script);
+}
+
 export function initAnalytics(): void {
   if (SENTRY_DSN) {
     Sentry.init({
@@ -35,6 +58,7 @@ export function initAnalytics(): void {
   }
   if (OPENPANEL_URL && OPENPANEL_CLIENT_ID) {
     try {
+      if (OPENPANEL_SCRIPT_URL) loadOpenPanelScript(OPENPANEL_SCRIPT_URL);
       window.op?.("init", {
         apiUrl: OPENPANEL_URL,
         clientId: OPENPANEL_CLIENT_ID,

frontend/src/lib/api.ts

@@ -18,7 +18,6 @@ import { jalaliToGregorian, toAsciiDigits } from "./jalali";
 import { useAuthStore } from "../store/auth";
 import type {
   Attachment,
-  CategoryUnit,
   ConfirmedReceipt,
   InventoryRow,
   InventoryTransaction,
@@ -30,8 +29,11 @@ import type {
   Store,
   Supplier,
   TransactionType,
-  UnitConversion,
   Warehouse,
+  ProjectTransfer,
+  ProjectTransferCreateIn,
+  ProjectTransferUpdateIn,
+  ProjectTransferReceiveIn,
 } from "./types";
 
 const BASE_URL = (import.meta.env?.VITE_API_BASE_URL as string | undefined)?.trim() || "/api/v1";
@@ -70,6 +72,20 @@ function authHeaders(init?: RequestInit): Record<string, string> {
   return headers;
 }
 
+// 401 سراسری — هر پاسخ 401 یعنی نشست منقضی/نامعتبر است (JWT روی همه‌ی
+// مسیرها الزامی شد). نشست را پاک می‌کنیم و به صفحه‌ی ورود می‌رویم تا به‌جای
+// «برنامه‌ی خاموش» (استور خالی، بدون هیچ خطایی) کاربر به ورود هدایت شود.
+// دخالت نمی‌کنیم در: خطای رمز خودِ لاگین، حالت توسعه (هدرهای X-User-*)،
+// و وقتی از قبل روی /login هستیم (جلوگیری از حلقه‌ی ریدایرکت).
+function handle401(path: string, res: Response): void {
+  if (res.status !== 401) return;
+  if (path.startsWith("/auth/login")) return;
+  if (useAuthStore.getState().isDev) return;
+  if (window.location.pathname === "/login") return;
+  useAuthStore.getState().logout();
+  window.location.replace("/login");
+}
+
 // پروژه‌ی فعالِ مدیر پروژه (چند-پروژه‌ای، 1:N): برای همه‌ی مسیرهای پنل انبار
 // صریحاً ارسال می‌شود تا بک‌اند داده‌های همان پروژه را برگرداند/اعتبارسنجی کند.
 // ادمین/مدیر تدارکات بدون پارامتر (همه‌ی پروژه‌ها) باقی می‌ماند.
@@ -186,6 +202,7 @@ async function request<T>(path: string, init?: RequestInit): Promise<T> {
   } catch {
     throw new ApiError("اتصال به سرور برقرار نشد — آیا بک‌اند در دسترس است؟", 0);
   }
+  handle401(path, res);
   if (!res.ok) {
     let msg = `خطای سرور (${res.status})`;
     let errCode: string | undefined;
@@ -226,24 +243,32 @@ async function request<T>(path: string, init?: RequestInit): Promise<T> {
 }
 
 async function getData<T>(path: string): Promise<T> {
-  const res = await request<{ data: T }>(path);
-  return res.data;
+  const res = await request<any>(path);
+  if (res && typeof res === "object" && "data" in res) {
+    return res.data as T;
+  }
+  return res as T;
 }
 async function postData<T>(path: string, body: unknown): Promise<T> {
-  const res = await request<{ data: T }>(path, { method: "POST", body: JSON.stringify(body) });
-  return res.data;
+  const res = await request<any>(path, { method: "POST", body: JSON.stringify(body) });
+  if (res && typeof res === "object" && "data" in res) {
+    return res.data as T;
+  }
+  return res as T;
 }
 async function patchData<T>(path: string, body: unknown): Promise<T> {
-  const res = await request<{ data: T }>(path, { method: "PATCH", body: JSON.stringify(body) });
-  return res.data;
-}
-async function putData<T>(path: string, body: unknown): Promise<T> {
-  const res = await request<{ data: T }>(path, { method: "PUT", body: JSON.stringify(body) });
-  return res.data;
+  const res = await request<any>(path, { method: "PATCH", body: JSON.stringify(body) });
+  if (res && typeof res === "object" && "data" in res) {
+    return res.data as T;
+  }
+  return res as T;
 }
 async function deleteData<T>(path: string): Promise<T> {
-  const res = await request<{ data: T }>(path, { method: "DELETE" });
-  return res.data;
+  const res = await request<any>(path, { method: "DELETE" });
+  if (res && typeof res === "object" && "data" in res) {
+    return res.data as T;
+  }
+  return res as T;
 }
 
 // آپلود چندبخشی (multipart) — بدون هدر Content-Type دستی تا مرورگر
@@ -261,6 +286,7 @@ async function uploadFile(path: string, file: File): Promise<Attachment> {
   } catch {
     throw new Error("اتصال به سرور برقرار نشد — آیا بک‌اند در دسترس است؟");
   }
+  handle401(path, res);
   if (!res.ok) {
     let msg = `خطای سرور (${res.status})`;
     try {
@@ -306,7 +332,9 @@ interface RawSupplier {
   phone?: string | null;
   contact_person?: string | null;
   tax_id?: string | null;
-  categories?: string[] | null; // متریال‌های تأمین‌شده
+  // v2.6: هر تأمین‌کننده دقیقاً یک دسته دارد (FK) — بک‌اند این را می‌فرستد
+  category_id?: string | null;
+  category?: { id: string; slug: string; name: string } | null;
 }
 interface RawProject {
   id: string;
@@ -383,21 +411,6 @@ interface RawQuote {
   line_items?: RawLineItem[] | null;
   termsheets?: RawTermsheet[] | null;
 }
-interface RawCategoryUnit {
-  id: string;
-  category_id: string;
-  ref_unit: string;
-  category?: RawCategory | null;
-}
-interface RawUnitConversion {
-  id: string;
-  category_id: string;
-  brand?: string | null;
-  from_unit: string;
-  to_unit: string;
-  factor: number;
-  category?: RawCategory | null;
-}
 interface RawStandardConversion {
   id: string;
   from_unit: string;
@@ -543,7 +556,6 @@ function adaptMaterial(raw: RawMaterial, lookup: Lookup): Material {
     topic:
       raw.topic ||
       (raw.category?.slug ? lookup.categorySlugToName.get(raw.category.slug) || "" : ""),
-    category: raw.category?.name || "",
     brand: raw.brands?.[0]?.name || "",
     // مشخصه‌ها از attribute های متریال خوانده می‌شوند (EAV)
     specs: (raw.attributes || [])
@@ -624,11 +636,13 @@ function adaptQuote(raw: RawQuote): Quote {
 }
 
 function adaptSupplier(raw: RawSupplier, topic: string, categories: string[]): Supplier {
+  // هر تأمین‌کننده دقیقاً یک دسته دارد (FK) و بک‌اند آن را به شکل category
+  // برمی‌گرداند — منبع اصلی همین است؛ پارامتر categories فقط پشتیبان است.
+  const own = raw.category?.name ? [raw.category.name] : [];
   return {
     id: raw.id,
     topic,
-    // دسته‌های ذخیره‌شده روی تأمین‌کننده (بک‌اند) اولویت دارند؛ وگرنه از quotes استنتاج می‌شود
-    categories: Array.isArray(raw.categories) && raw.categories.length ? raw.categories : categories,
+    categories: own.length ? own : categories,
     name: raw.name,
     location: raw.location || "",
     phone: raw.phone || "",
@@ -646,44 +660,29 @@ function deriveSupplierTopics(
   materialsById: Map<string, Material>,
 ): Supplier[] {
   const topics = new Map<string, Set<string>>();
-  const cats = new Map<string, Set<string>>();
   for (const q of quotes) {
     for (const li of q.line_items) {
       const m = materialsById.get(li.material_id);
       if (!m) continue;
       if (!topics.has(q.supplier_id)) topics.set(q.supplier_id, new Set());
-      if (!cats.has(q.supplier_id)) cats.set(q.supplier_id, new Set());
       if (m.topic) topics.get(q.supplier_id)!.add(m.topic);
-      if (m.category) cats.get(q.supplier_id)!.add(m.category);
     }
   }
   return rawSuppliers.map((s) => {
     const t = topics.get(s.id);
-    const c = cats.get(s.id);
-    // اگر از quotes topic/category پیدا نشد، registry را چک کن
-    if (!t || t.size === 0) {
+    const derivedTopic = t && t.size ? [...t][0] : "";
+    // اگر از quotes چیزی پیدا نشد، registry را چک کن
+    if (!derivedTopic) {
       const reg = supplierTopicRegistry.get(s.id);
-      if (reg) {
-        return adaptSupplier(s, reg.topic, reg.categories);
-      }
+      if (reg) return adaptSupplier(s, reg.topic, reg.categories);
     }
-    return adaptSupplier(s, t ? [...t][0] : "", c ? [...c].sort((a, b) => a.localeCompare(b, "fa")) : []);
+    // دستهٔ ثبت‌شده روی خودِ تأمین‌کننده (FK بک‌اند) منبع اصلی است و نامش با نام
+    // تاپیک‌ها یکی است؛ تاپیک از اقلام پیشنهاد استنتاج می‌شود.
+    const backendCat = s.category?.name || "";
+    return adaptSupplier(s, derivedTopic || backendCat, backendCat ? [backendCat] : []);
   });
 }
 
-function adaptCategoryUnit(raw: RawCategoryUnit): CategoryUnit {
-  return { id: raw.id, category: raw.category?.name || "", ref_unit: raw.ref_unit };
-}
-function adaptUnitConversion(raw: RawUnitConversion, lookup: Lookup): UnitConversion {
-  return {
-    id: raw.id,
-    category: raw.category?.name || lookup.categoryIdToName.get(raw.category_id) || "",
-    brand: raw.brand || "",
-    from_unit: raw.from_unit,
-    to_unit: raw.to_unit,
-    factor: raw.factor,
-  };
-}
 function adaptStandardConversion(raw: RawStandardConversion): StandardConversion {
   return { id: raw.id, from_unit: raw.from_unit, to_unit: raw.to_unit, factor: raw.factor };
 }
@@ -801,16 +800,14 @@ function registerSupplierTopic(id: string, topic: string, categories: string[]):
 export const api = {
   // ---------- کل store (یک بار در ریشه) ----------
   async listAll(): Promise<Store> {
-    const [quotesRes, suppliersRes, materialsRes, projectsRes, unitsRes, categoriesRes, cruRes, ucRes, scuRes] =
+    const [quotesRes, suppliersRes, materialsRes, projectsRes, unitsRes, categoriesRes, scuRes] =
       await Promise.all([
         getData<RawQuote[]>(`/quotes?expand=supplier,project,events,line_items,termsheets,decision,receipt&page_size=${PAGE_SIZE}`),
         getData<RawSupplier[]>(`/suppliers?page_size=${PAGE_SIZE}`),
-        getData<RawMaterial[]>(`/materials?expand=category,brands,canonical_unit,attributes&page_size=${PAGE_SIZE}`),
+        getData<RawMaterial[]>(`/materials?expand=brands,canonical_unit,attributes&page_size=${PAGE_SIZE}`),
         getData<RawProject[]>(`/projects?page_size=${PAGE_SIZE}`),
         getData<RawUnit[]>(`/units?page_size=${PAGE_SIZE}`),
         getData<RawMaterialCategory[]>(`/material-categories?page_size=${PAGE_SIZE}`),
-        getData<RawCategoryUnit[]>(`/category-reference-units?expand=category&page_size=${PAGE_SIZE}`),
-        getData<RawUnitConversion[]>(`/unit-conversions?expand=category&page_size=${PAGE_SIZE}`),
         getData<RawStandardConversion[]>(`/standard-conversions?page_size=${PAGE_SIZE}`),
       ]);
 
@@ -825,8 +822,6 @@ export const api = {
       materials,
       projects: projectsRes.map((p) => ({ id: p.id, name: p.name })),
       quotes,
-      categoryUnits: cruRes.map(adaptCategoryUnit),
-      unitConversions: ucRes.map((uc) => adaptUnitConversion(uc, lookup)),
       standardConversions: scuRes.map(adaptStandardConversion),
       topics: buildTopics(categoriesRes),
     };
@@ -948,13 +943,28 @@ export const api = {
 
       if (becomingAccepted) {
         const acceptedTs = (patch.termsheets || []).filter((t) => t.status === "accepted");
-        // پروژه‌ی واحدِ انتخاب‌شده برای هر قلم (item_decisions.project_id)
+        // پروژه‌ی واحدِ انتخاب‌شده یا تخصیص‌های چندپروژه‌ای برای هر قلم
         const targetProjByLine = new Map<string, string>();
+        const allocationsByLine = new Map<string, { project_id: string; quantity: number }[]>();
         for (const li of patch.line_items || []) {
-          const tp = li.target_project;
-          if (tp && tp.name) {
-            const pid = looksLikeUuid(tp.id) ? tp.id : await projectIdByNameOrCreate(tp.name);
-            if (pid) targetProjByLine.set(li.id, pid);
+          if (li.allocations && li.allocations.length > 0) {
+            const resolvedAllocs: { project_id: string; quantity: number }[] = [];
+            for (const a of li.allocations) {
+              const pid = looksLikeUuid(a.project_id) ? a.project_id! : await projectIdByNameOrCreate(a.project_name);
+              if (pid && a.quantity > 0) {
+                resolvedAllocs.push({ project_id: pid, quantity: Number(a.quantity) });
+              }
+            }
+            if (resolvedAllocs.length) {
+              allocationsByLine.set(li.id, resolvedAllocs);
+              targetProjByLine.set(li.id, resolvedAllocs[0].project_id);
+            }
+          } else {
+            const tp = li.target_project;
+            if (tp && tp.name) {
+              const pid = looksLikeUuid(tp.id) ? tp.id : await projectIdByNameOrCreate(tp.name);
+              if (pid) targetProjByLine.set(li.id, pid);
+            }
           }
         }
 
@@ -974,11 +984,13 @@ export const api = {
             const idx = li.accepted_ts_id ? acceptedTs.findIndex((t) => t.id === li.accepted_ts_id) : -1;
             const chosen = !li.rejected && idx >= 0;
             const chosenProjId = targetProjByLine.get(li.id);
+            const lineAllocs = allocationsByLine.get(li.id);
             return {
               line_item_id: li.id,
               status: chosen ? "chosen" : "rejected",
               ...(chosen ? { accepted_termsheet_index: idx } : {}),
               ...(chosen && chosenProjId ? { project_id: chosenProjId } : {}),
+              ...(chosen && lineAllocs && lineAllocs.length ? { allocations: lineAllocs } : {}),
               ...(li.unit_price != null ? { adjusted_unit_price: li.unit_price } : {}),
             };
           }),
@@ -1101,19 +1113,13 @@ export const api = {
 
   materials: {
     list: async (): Promise<Material[]> => {
-      const raw = await getData<RawMaterial[]>(`/materials?expand=category,brands,canonical_unit,attributes&page_size=${PAGE_SIZE}`);
+      const raw = await getData<RawMaterial[]>(`/materials?expand=brands,canonical_unit,attributes&page_size=${PAGE_SIZE}`);
       const units = await getData<RawUnit[]>(`/units?page_size=${PAGE_SIZE}`);
       const categories = await getData<RawMaterialCategory[]>(`/material-categories?page_size=${PAGE_SIZE}`);
       return raw.map((m) => adaptMaterial(m, buildLookup(units, categories)));
     },
     create: async (m: Material): Promise<Material> => {
       const lookup = await fetchLookup();
-      // v2.5: category_id اختیاری است — اگر نامِ تایپ‌شده یکی از ۸ دسته‌ی ثابت
-      // نباشد، متریال به‌صورت سراسری (بدون دسته) ساخته می‌شود و دسته‌اش بعداً
-      // از اولین تأمین‌کننده‌ی مرتبط استنتاج می‌شود (first-link-wins).
-      // دسته‌ی rogue دیگر هرگز ساخته نمی‌شود — فقط تطبیق با ۸ دسته‌ی موجود؛
-      // در صورت نبود تطبیق، خطا نمی‌دهیم و category_id را null می‌فرستیم.
-      const categoryId = m.category ? lookup.categoryNameToId.get(norm(m.category)) : undefined;
       // واحد مرجع — بدون مقدار پیش‌فرض؛ متریال بدون واحدِ صریح ساخته نمی‌شود
       // (بک‌اند canonical_unit_id را الزامی می‌داند)
       const unitName = (m.base_unit || "").trim();
@@ -1126,7 +1132,7 @@ export const api = {
       // name فقط نامِ خودِ متریال است؛ برند در brand_ids و مشخصه‌ها در
       // attributes (EAV) ذخیره می‌شوند. اگر برند/مشخصه داخل name ریخته شود،
       // در ویزارد به‌عنوان «نامِ متریال» کش می‌شود و مشخصه‌ها در نام ظاهر می‌شوند.
-      const name = (m.category || m.brand || (m.specs || []).join(" ") || "").trim() || "کالای جدید";
+      const name = (m.name || m.brand || (m.specs || []).join(" ") || "").trim() || "کالای جدید";
       // مشخصه‌ها به‌صورت attribute (EAV) ذخیره می‌شوند تا بعد از رفرش دیده شوند
       const attrs: { attribute_definition_id: string; value: string }[] = [];
       const seen = new Set<string>();
@@ -1138,7 +1144,6 @@ export const api = {
         if (defId) attrs.push({ attribute_definition_id: defId, value: spec });
       }
       const raw = await postData<RawMaterial>("/materials", {
-        category_id: categoryId ?? null,
         name,
         topic: m.topic || null,
         canonical_unit_id: unitId,
@@ -1168,46 +1173,6 @@ export const api = {
   },
 
   units: {
-    getCategoryUnits: async (): Promise<CategoryUnit[]> => {
-      const raw = await getData<RawCategoryUnit[]>(`/category-reference-units?expand=category&page_size=${PAGE_SIZE}`);
-      return raw.map(adaptCategoryUnit);
-    },
-    saveCategoryUnit: async (cu: CategoryUnit): Promise<void> => {
-      const lookup = await fetchLookup();
-      const categoryId = lookup.categoryNameToId.get(norm(cu.category));
-      if (!categoryId) throw new Error(`دسته‌بندی «${cu.category}» یافت نشد`);
-      await putData(`/category-reference-units/${categoryId}`, { ref_unit: cu.ref_unit });
-    },
-    getConversions: async (): Promise<UnitConversion[]> => {
-      const lookup = await fetchLookup();
-      const raw = await getData<RawUnitConversion[]>(`/unit-conversions?expand=category&page_size=${PAGE_SIZE}`);
-      return raw.map((uc) => adaptUnitConversion(uc, lookup));
-    },
-    saveConversion: async (c: UnitConversion): Promise<void> => {
-      const lookup = await fetchLookup();
-      const categoryId = lookup.categoryNameToId.get(norm(c.category));
-      if (!categoryId) throw new Error(`دسته‌بندی «${c.category}» یافت نشد`);
-      const body = {
-        category_id: categoryId,
-        brand: c.brand || null,
-        from_unit: c.from_unit,
-        to_unit: c.to_unit,
-        factor: c.factor,
-      };
-      if (looksLikeUuid(c.id)) {
-        await patchData(`/unit-conversions/${c.id}`, {
-          brand: c.brand || null,
-          from_unit: c.from_unit,
-          to_unit: c.to_unit,
-          factor: c.factor,
-        });
-      } else {
-        await postData("/unit-conversions", body);
-      }
-    },
-    deleteConversion: async (id: string): Promise<void> => {
-      await deleteData(`/unit-conversions/${id}`);
-    },
     getStandardConversions: async (): Promise<StandardConversion[]> => {
       const raw = await getData<RawStandardConversion[]>(`/standard-conversions?page_size=${PAGE_SIZE}`);
       return raw.map(adaptStandardConversion);
@@ -1286,13 +1251,15 @@ export const api = {
     // را با توکن می‌گیریم و به شکل blob در مرورگر ذخیره می‌کنیم.
     download: async (quoteId: string, kind: FileKind, id: string, fileName: string): Promise<void> => {
       let res: Response;
+      const dlPath = `/quotes/${quoteId}/${kind}/${id}`;
       try {
-        res = await fetch(`${BASE_URL}/quotes/${quoteId}/${kind}/${id}`, {
+        res = await fetch(BASE_URL + dlPath, {
           headers: authHeaders(),
         });
       } catch {
         throw new ApiError("اتصال به سرور برقرار نشد — آیا بک‌اند در دسترس است؟", 0);
       }
+      handle401(dlPath, res);
       if (!res.ok) throw new ApiError(faHttpError(res.status, "خطای سرور"), res.status);
       const blob = await res.blob();
       const url = URL.createObjectURL(blob);
@@ -1307,6 +1274,19 @@ export const api = {
         URL.revokeObjectURL(url);
       }
     },
+    // آدرس blob احراز هویت‌شده برای پیش‌نمایش (تصویر/PDF در مودال).
+    // تگ‌های <img>/<iframe>/<a href> توکن نمی‌فرستند، پس بایت‌ها را با توکن
+    // آدرس پیش‌نمایش احراز هویت‌شده برای <iframe>/<img>.
+    // این‌ها نمی‌توانند هدر Authorization بفرستند، پس بک‌اند یک توکن
+    // امضاشده‌ی کوتاه‌عمر در کوئری می‌دهد. عمداً blob ساخته نمی‌شود:
+    // دانلودمنیجرها (IDM) blob را شکار می‌کنند و فایل ۰ بایتی می‌سازند،
+    // در حالی که این یک URL واقعی است و درست بارگذاری می‌شود.
+    previewUrl: async (quoteId: string, kind: FileKind, id: string): Promise<string> => {
+      const res = await getData<{ url: string; token: string }>(
+        `/quotes/${quoteId}/preview-url/${kind}/${id}`,
+      );
+      return BASE_URL + res.url;
+    },
   },
 
   // ---------- برندها (از بک‌اند) ----------
@@ -1705,7 +1685,8 @@ export const apiV26 = {
       const d = await postData<Parameters<typeof rawWarehouse>[0]>(`/inventory/warehouses${projectQuery()}`, body);
       return rawWarehouse(d);
     },
-    update: async (id: string, body: { name?: string; description?: string | null; project_id?: string }): Promise<Warehouse> => {
+    // project_id عمداً در تایپ نیست — انبار برای همیشه به پروژه‌ی والدش تعلق دارد
+    update: async (id: string, body: { name?: string; description?: string | null }): Promise<Warehouse> => {
       const d = await patchData<Parameters<typeof rawWarehouse>[0]>(`/inventory/warehouses/${id}${projectQuery()}`, body);
       return rawWarehouse(d);
     },
@@ -1737,15 +1718,6 @@ export const apiV26 = {
     types: async (): Promise<{ type: TransactionType; label: string }[]> => {
       return getData<{ type: TransactionType; label: string }[]>("/inventory/meta/types");
     },
-    materialOptions: async (category_id: string, warehouse_id?: string): Promise<{ id: string; name: string; brands: { id: string; name: string }[] }[]> => {
-      const params: Record<string, string> = { category_id };
-      if (warehouse_id) params.warehouse_id = warehouse_id;
-      const pid = activeProjectId();
-      if (pid) params.project_id = pid;
-      return getData<{ id: string; name: string; brands: { id: string; name: string }[] }[]>(
-        `/inventory/materials/options?${new URLSearchParams(params).toString()}`,
-      );
-    },
   },
 
   pm: {
@@ -1783,7 +1755,6 @@ export const apiV26 = {
     }): Promise<{ id: string; name: string }> =>
       postData("/materials", {
         name: opts.name,
-        category_id: null, // دسته از اولین تأمین‌کننده‌ی مرتبط استنتاج می‌شود (v2.5)
         topic: null,
         canonical_unit_id: opts.canonical_unit_id,
         status: "active",
@@ -1791,4 +1762,41 @@ export const apiV26 = {
         attributes: [],
       }),
   },
+
+  projectTransfers: {
+    list: async (projectId?: string | null, direction: "outgoing" | "incoming" | "all" = "all", status?: string): Promise<ProjectTransfer[]> => {
+      const q = new URLSearchParams();
+      if (projectId) q.set("project_id", projectId);
+      if (direction) q.set("direction", direction);
+      if (status) q.set("status", status);
+      const qs = q.toString() ? `?${q.toString()}` : "";
+      try {
+        const res = await getData<ProjectTransfer[]>(`/inventory/project-transfers${qs}`);
+        return Array.isArray(res) ? res : [];
+      } catch (err) {
+        console.error("Failed to fetch project transfers:", err);
+        return [];
+      }
+    },
+    get: async (id: string, projectId?: string | null): Promise<ProjectTransfer> =>
+      getData<ProjectTransfer>(projectId ? `/inventory/project-transfers/${id}?project_id=${projectId}` : `/inventory/project-transfers/${id}`),
+    create: async (body: ProjectTransferCreateIn, projectId?: string | null): Promise<ProjectTransfer> =>
+      postData<ProjectTransfer>(projectId ? `/inventory/project-transfers?project_id=${projectId}` : `/inventory/project-transfers`, body),
+    update: async (id: string, patch: ProjectTransferUpdateIn, projectId?: string | null): Promise<ProjectTransfer> =>
+      patchData<ProjectTransfer>(projectId ? `/inventory/project-transfers/${id}?project_id=${projectId}` : `/inventory/project-transfers/${id}`, patch),
+    delete: async (id: string, projectId?: string | null): Promise<{ ok: boolean; message: string }> =>
+      deleteData(projectId ? `/inventory/project-transfers/${id}?project_id=${projectId}` : `/inventory/project-transfers/${id}`),
+    onTheWay: async (projectId?: string | null): Promise<ProjectTransfer[]> => {
+      try {
+        const res = await getData<ProjectTransfer[]>(projectId ? `/pm/transfers/on-the-way?project_id=${projectId}` : `/pm/transfers/on-the-way`);
+        return Array.isArray(res) ? res : [];
+      } catch (err) {
+        console.error("Failed to fetch on-the-way transfers:", err);
+        return [];
+      }
+    },
+    receive: async (id: string, body: ProjectTransferReceiveIn, projectId?: string | null): Promise<ProjectTransfer> =>
+      postData<ProjectTransfer>(projectId ? `/inventory/project-transfers/${id}/receive?project_id=${projectId}` : `/inventory/project-transfers/${id}/receive`, body),
+  },
 };
+

frontend/src/lib/quoteUtils.ts

@@ -2,7 +2,7 @@
 // منطق بیزنس مشترک پیشنهادها — پورت از app.js
 // ============================================================
 
-import type { LineItem, Material, Quote, StandardConversion, Store, Supplier, UnitConversion } from "./types";
+import type { LineItem, Material, Quote, Store, Supplier } from "./types";
 import { normalize } from "./normalize";
 import { groupCommas } from "./numutil";
 import { fmtDate } from "./formatters";
@@ -17,7 +17,6 @@ export function materialById(materials: Material[], id: string): Material {
       id: "",
       name: "",
       topic: "",
-      category: "؟",
       brand: "",
       specs: [],
       base_unit: "",
@@ -35,43 +34,51 @@ export function specsKey(specs: string[]): string {
   return (specs || []).map((s) => normalize(s)).filter(Boolean).sort().join("|");
 }
 
-// specها با جداکننده‌ی « · »
+// specها با جداکننده‌ی « . »
 export function specsLabel(specs: string[]): string {
-  return specs.join(" · ");
+  return specs.join(" . ");
 }
 
 /**
  * عنوان تمیز و بدون تکرار کالا:
- * ترکیب هوشمندانه‌ی نام اصلی (materials.name)، برند، و مشخصه‌ها بدون تکرار کلمات مشترک.
+ * ترتیب اکید با جداکننده‌ی نقطه:
+ * [نام برند] . [نام متریال] . [مشخصه ۱] . [مشخصه ۲]
  */
 export function formatMaterialTitle(
-  m: Pick<Material, "name" | "brand" | "specs" | "category"> | null | undefined,
+  m: Pick<Material, "name" | "brand" | "specs"> | null | undefined,
   extraSpecs?: string[],
 ): string {
   if (!m) return "کالا";
-  const rawName = (m.name || "").trim();
+  let rawName = (m.name || "").trim();
   const rawBrand = (m.brand || "").trim();
   const rawSpecs = [...(m.specs || []), ...(extraSpecs || [])]
     .map((s) => (s || "").trim())
     .filter(Boolean);
 
-  const normName = normalize(rawName);
   const normBrand = normalize(rawBrand);
 
-  if (!rawName) {
-    if (rawBrand && rawSpecs.length) return `${rawBrand} · ${rawSpecs.join(" · ")}`;
-    if (rawBrand) return rawBrand;
-    if (rawSpecs.length) return rawSpecs.join(" · ");
-    return m.category && m.category !== "؟" ? m.category : "کالا";
+  // اگر نام کالا با نام برند شروع شده باشد، برند را از ابتدای نام برمی‌داریم تا تکرار نشود
+  if (normBrand && rawName) {
+    const normName = normalize(rawName);
+    if (normName.startsWith(normBrand)) {
+      const rest = rawName.slice(rawBrand.length).trim();
+      rawName = rest.replace(/^[.\s·\-]+/, "").trim();
+    }
   }
 
-  let title = rawName;
-  if (normBrand && !normName.includes(normBrand)) {
-    title = `${rawBrand} ${title}`;
+  // قطعات نهایی با ترتیب مشخص: [Brand Name] . [Material Name] . [Specification 1] . [Specification 2]
+  const parts: string[] = [];
+  if (rawBrand) {
+    parts.push(rawBrand);
+  }
+  if (rawName) {
+    parts.push(rawName);
+  } else if (!rawBrand) {
+    parts.push("کالا");
   }
 
-  const normTitle = normalize(title);
-  const distinctSpecs: string[] = [];
+  // اضافه کردن مشخصه‌ها بدون تکرار
+  const normCurrent = normalize(parts.join(" "));
   const seenNormSpecs = new Set<string>();
 
   for (const s of rawSpecs) {
@@ -79,21 +86,75 @@ export function formatMaterialTitle(
     if (!ns || seenNormSpecs.has(ns)) continue;
     seenNormSpecs.add(ns);
 
-    // اگر مشخصه قبلاً داخل عنوان یا نام کالا آمده باشد، تکرار نمی‌کنیم
-    if (normTitle.includes(ns)) continue;
-    distinctSpecs.push(s);
+    // اگر مشخصه قبلاً داخل نام یا برند آمده باشد، تکرار نمی‌کنیم
+    if (normCurrent.includes(ns)) continue;
+    parts.push(s);
   }
 
-  if (distinctSpecs.length > 0) {
-    return `${title} · ${distinctSpecs.join(" · ")}`;
-  }
-  return title;
+  return parts.join(" . ");
 }
 
-export function materialLabel(m: Pick<Material, "name" | "brand" | "specs" | "category"> | null | undefined): string {
+export function materialLabel(m: Pick<Material, "name" | "brand" | "specs"> | null | undefined): string {
   return formatMaterialTitle(m);
 }
 
+// نام پایه‌ی متریال از نامِ ذخیره‌شده.
+// متریال‌های جدید فقط نامِ خودِ متریال را در name دارند (برند در brand و
+// مشخصه‌ها در attributes ذخیره می‌شوند) و دست‌نخورده برمی‌گردند. رکوردهای قدیمی
+// name را به شکل «برند + مشخصه» ذخیره کرده‌اند؛ آن قطعات جدا می‌شوند تا نامِ
+// پایه باقی بماند.
+export function materialBaseName(name: string, brand: string, specs: string[]): string {
+  const fallback = (name || "").trim();
+  if (!fallback) return "";
+  let base = fallback;
+  // بلندترین قطعه اول حذف می‌شود تا حذف‌های جزئی، رشته را ناقص نکنند
+  const parts = [brand, ...specs]
+    .map((p) => (p || "").trim())
+    .filter(Boolean)
+    .sort((a, b) => b.length - a.length);
+  for (const p of parts) {
+    if (!base.includes(p)) continue;
+    const next = base.split(p).join(" ").replace(/\s+/g, " ").trim();
+    // اگر حذفِ این قطعه کلِ نام را خالی کند، یعنی همان نامِ متریال بوده — نگهش دار
+    if (!next) continue;
+    base = next;
+  }
+  // شکلِ قدیمیِ خراب می‌تواند فقط یک مشخصه باقی بگذارد؛ آن دیگر نامِ متریال نیست
+  if (parts.some((p) => p === base)) return fallback;
+  return base || fallback;
+}
+
+/**
+ * یافتن متریالِ متناظر با یک ردیفِ اقلام.
+ *
+ * هویت متریال = نام + برند + مشخصه. پیش از v2.7 دسته هم در این تطبیق بود، ولی
+ * دسته دیگر روی متریال نیست؛ تکیه بر نام جلوی اشتباه‌گرفتن دو متریال با
+ * برند و مشخصه‌ی یکسان (مثل دو چمن مصنوعیِ هم‌برند) را می‌گیرد. نامِ خالی یعنی
+ * هویت نامعلوم — در آن حالت تطبیق نمی‌دهیم و متریالِ تازه ساخته می‌شود.
+ */
+export function matchMaterial(
+  materials: Material[],
+  name: string,
+  brand: string,
+  specs: string[],
+): Material | undefined {
+  const wantName = normalize(name);
+  if (!wantName) return undefined;
+  const wantBrand = normalize(brand);
+  const wantSpecs = specsKey(specs);
+  const sameIdentity = (m: Material) => normalize(m.brand) === wantBrand && specsKey(m.specs) === wantSpecs;
+  const base = normalize(materialBaseName(name, brand, specs));
+  return (
+    materials.find((m) => normalize(m.name) === wantName && sameIdentity(m)) ||
+    materials.find(
+      (m) =>
+        base &&
+        normalize(materialBaseName(m.name, m.brand, m.specs)) === base &&
+        sameIdentity(m),
+    )
+  );
+}
+
 // آرایه‌ی termsheet_ids یک قلم (هر دو فرمت قدیم/جدید)
 export function itemTermsheetIds(li: LineItem): string[] {
   if (li.termsheet_ids) return li.termsheet_ids;
@@ -153,54 +214,6 @@ export function itemProjects(q: Quote, li: LineItem): string[] {
   return (li.projects || []).map((p) => (typeof p === "string" ? p : p.name)).filter(Boolean);
 }
 
-// ---------- واحد مرجع و ضریب تبدیل ----------
-
-// واحد مرجع یک دسته
-export function refUnitForCategory(store: Pick<Store, "categoryUnits">, category: string): string {
-  const cu = (store.categoryUnits || []).find((c) => normalize(c.category) === normalize(category));
-  return cu ? cu.ref_unit : "";
-}
-
-// ضریب تبدیل با اولویت: دسته‌ای (برند مشخص > همه برندها) > تبدیل ثابت جهانی
-export function findConversion(
-  store: Pick<Store, "unitConversions" | "standardConversions">,
-  category: string,
-  brand: string,
-  fromUnit: string,
-  toUnit: string,
-): UnitConversion | StandardConversion | null {
-  const list = (store.unitConversions || []).filter(
-    (c) =>
-      normalize(c.category) === normalize(category) &&
-      normalize(c.from_unit) === normalize(fromUnit) &&
-      normalize(c.to_unit) === normalize(toUnit) &&
-      (!c.brand || normalize(c.brand) === normalize(brand)),
-  );
-  list.sort((a, b) => (b.brand ? 1 : 0) - (a.brand ? 1 : 0));
-  if (list[0]) return list[0];
-  return (
-    (store.standardConversions || []).find(
-      (c) => normalize(c.from_unit) === normalize(fromUnit) && normalize(c.to_unit) === normalize(toUnit),
-    ) || null
-  );
-}
-
-// تبدیل یک قلم به واحد مرجع دسته؛ null وقتی ضریبی نیست یا واحد از قبل مرجع است
-export function refConverted(
-  store: Pick<Store, "categoryUnits" | "unitConversions" | "standardConversions" | "materials">,
-  li: LineItem,
-): { qty: number; unit: string; perRef: number | null } | null {
-  const m = materialById(store.materials, li.material_id);
-  const ref = refUnitForCategory(store, m.category);
-  if (!ref || !li.unit || normalize(ref) === normalize(li.unit)) return null;
-  const conv = findConversion(store, m.category, m.brand, li.unit, ref);
-  if (!conv) return null;
-  const qty = (li.quantity || 0) * conv.factor;
-  const total = li.total_price != null ? li.total_price : (li.unit_price || 0) * (li.quantity || 0);
-  const perRef = qty > 0 ? Math.round(total / qty) : null;
-  return { qty, unit: ref, perRef };
-}
-
 // واحدهای ناشناخته‌ی استفاده‌شده در یک quote → لینک به داشبورد واحدها
 // واحدها دیگر hardcode نیستند — همه از بک‌اند می‌آیند؛ هشداری نمایش داده نمی‌شود
 export function unitWarning(_store: Store, _q: Quote): { unit: string; cat: string }[] {
@@ -270,9 +283,8 @@ export function termsheetSummary(store: Store, q: Quote): { title: string; sub:
 // فیلترهای دفتر
 export function filterQuotes(
   store: Store,
-  filters: { category: string; supplier: string; status: string; search: string },
+  filters: { supplier: string; status: string; search: string },
 ): Quote[] {
-  const catVal = filters.category.trim();
   const supVal = filters.supplier.trim();
   const stVal = filters.status.trim();
   const q = filters.search.trim().toLowerCase();
@@ -281,8 +293,13 @@ export function filterQuotes(
     "پیشنهاد شده": "offered",
     "پذیرفته شده": "accepted",
     "رسیده": "arrived",
+    "باز": "offered",
+    "پذیرفته": "accepted",
+    "offered": "offered",
+    "accepted": "accepted",
+    "arrived": "arrived",
   };
-  const stKey = STATUS_BY_LABEL[stVal] || "";
+  const stKey = STATUS_BY_LABEL[stVal] || stVal;
 
   return store.quotes.filter((quote) => {
     const supObj = supplierById(store.suppliers, quote.supplier_id);
@@ -290,12 +307,11 @@ export function filterQuotes(
     if (stKey && quote.status !== stKey) return false;
 
     const matInfo = activeItems(quote).map((li) => materialById(store.materials, li.material_id));
-    if (catVal && !matInfo.some((m) => m.category === catVal)) return false;
 
     if (q) {
       const hay =
         `${supObj.name} ${quote.project || ""} ` +
-        matInfo.map((m) => `${m.category} ${m.brand} ${materialSpecs(m).join(" ")}`).join(" ");
+        matInfo.map((m) => `${m.brand} ${materialSpecs(m).join(" ")}`).join(" ");
       if (!hay.toLowerCase().includes(q)) return false;
     }
     return true;
@@ -306,11 +322,16 @@ export function filterQuotes(
 export function isExpired(q: Quote): boolean {
   return (
     q.status === "offered" &&
+    !quoteHasArrivedOrAccepted(q) &&
     !!q.expiry_date &&
     new Date(q.expiry_date) < new Date(new Date().toDateString())
   );
 }
 
+function quoteHasArrivedOrAccepted(q: Quote): boolean {
+  return q.status === "accepted" || q.status === "arrived";
+}
+
 // آماده‌سازی نمایش ترم‌شیت در حالت expanded
 export function termSheetBlocks(
   store: Store,
@@ -340,4 +361,4 @@ export function termSheetBlocks(
     });
     return { ts, isAccepted, isUsed, itemsDesc, milestones };
   });
-}
+}

frontend/src/lib/types.ts

@@ -20,9 +20,8 @@ export interface Supplier {
 // ماده/کالا
 export interface Material {
   id: string; // "m1", "m2", ...
-  name: string; // نام کامل ذخیره‌شده در بک‌اند (برند + دسته + مشخصه)
+  name: string; // نامِ خودِ متریال — برند در brand و مشخصه‌ها در specs
   topic: string;
-  category: string; // مثلاً "میلگرد"
   brand: string; // مثلاً "ذوب آهن"
   specs: string[]; // آرایه‌ای از مشخصه‌ها (مثلاً ["A2"])
   base_unit: string; // واحد پایه
@@ -74,6 +73,7 @@ export interface LineItem {
   projects?: { id: string; name: string }[]; // پروژه‌های کاندیدای تخصیص‌یافته به این قلم (line_item_projects)
   target_project?: { id: string; name: string } | null; // پروژه‌ی نهایی انتخاب‌شده در هنگام خرید (item_decisions.project_id)
   target_project_id?: string | null;
+  allocations?: { project_id?: string; project_name: string; quantity: number }[]; // تخصیص چندپروژه‌ای در پذیرش
 }
 
 // پیشنهاد خرید (اصلی‌ترین entity)
@@ -97,23 +97,6 @@ export interface Quote {
   termsheets: Termsheet[];
 }
 
-// واحد مرجع هر دسته
-export interface CategoryUnit {
-  id: string;
-  category: string;
-  ref_unit: string;
-}
-
-// ضریب تبدیل (دسته‌ای)
-export interface UnitConversion {
-  id: string;
-  category: string;
-  brand: string; // خالی = همه برندها
-  from_unit: string;
-  to_unit: string;
-  factor: number; // 1 from_unit = factor * to_unit
-}
-
 // ضریب تبدیل استاندارد (جهانی)
 export interface StandardConversion {
   id: string;
@@ -128,8 +111,6 @@ export interface Store {
   materials: Material[];
   projects: Project[];
   quotes: Quote[];
-  categoryUnits: CategoryUnit[];
-  unitConversions: UnitConversion[];
   standardConversions: StandardConversion[];
   topics: Topic[]; // دسته‌بندی‌های ۸گانه از /material-categories
 }
@@ -219,3 +200,52 @@ export interface ConfirmedReceipt {
   quality_note: string | null;
   allocations: { warehouse_id: string; warehouse_name: string; quantity: string }[];
 }
+
+export interface ProjectTransfer {
+  id: string;
+  from_project: { id: string; name: string };
+  from_warehouse: { id: string; name: string };
+  to_project: { id: string; name: string };
+  to_warehouse?: { id: string; name: string } | null;
+  material: { id: string; name: string };
+  brand?: { id: string; name: string } | null;
+  unit: { id: number; code: string; name_fa?: string | null };
+  quantity: number;
+  specs: Record<string, string>;
+  specs_hash: string;
+  note?: string | null;
+  status: "in_transit" | "received" | "cancelled";
+  transfer_date: string;
+  transferred_by?: string | null;
+  received_at?: string | null;
+  received_by?: string | null;
+  receipt_allocations?: { warehouse_id: string; quantity: string | number }[] | null;
+  created_at: string;
+  updated_at: string;
+}
+
+export interface ProjectTransferCreateIn {
+  from_warehouse_id: string;
+  to_project_id: string;
+  material_id: string;
+  brand_id?: string | null;
+  unit_id: number;
+  quantity: number;
+  specs?: Record<string, string>;
+  note?: string | null;
+  transfer_date?: string | null;
+}
+
+export interface ProjectTransferUpdateIn {
+  to_project_id?: string;
+  quantity?: number;
+  note?: string | null;
+  transfer_date?: string | null;
+}
+
+export interface ProjectTransferReceiveIn {
+  allocations: { warehouse_id: string; quantity: number }[];
+  received_at?: string | null;
+  note?: string | null;
+}
+

frontend/src/pages/Dashboard/AcceptModal.tsx

@@ -23,12 +23,134 @@ import {
 import { MilestoneRow } from "../../components/MilestoneRow";
 import { FileList } from "../../components/FileList";
 import { JalaliDatePicker } from "../../components/JalaliDatePicker";
+import { Building2, Plus, Trash2, CheckCircle2, AlertCircle } from "lucide-react";
+
+// تبدیل عدد به حروف فارسی جهت نمایش زیر باکس مقدار
+const ONES = ["", "یک", "دو", "سه", "چهار", "پنج", "شش", "هفت", "هشت", "نه"];
+const TEENS = [
+  "ده",
+  "یازده",
+  "دوازده",
+  "سیزده",
+  "چهارده",
+  "پانزده",
+  "شانزده",
+  "هفده",
+  "هجده",
+  "نوزده",
+];
+const TENS = [
+  "",
+  "",
+  "بیست",
+  "سی",
+  "چهل",
+  "پنجاه",
+  "شصت",
+  "هفتاد",
+  "هشتاد",
+  "نود",
+];
+const HUNDREDS = [
+  "",
+  "صد",
+  "دویست",
+  "سیصد",
+  "چهارصد",
+  "پانصد",
+  "ششصد",
+  "هفتصد",
+  "هشتصد",
+  "نهصد",
+];
+const SCALES = ["", "هزار", "میلیون", "میلیارد", "تریلیون"];
+const DECIMAL_SCALES: Record<number, string> = {
+  1: "دهم",
+  2: "صدم",
+  3: "هزارم",
+  4: "ده‌هزارم",
+};
+
+function convertThreeDigits(n: number): string {
+  if (n === 0) return "";
+  const parts: string[] = [];
+  const h = Math.floor(n / 100);
+  const rem = n % 100;
+  if (h > 0) parts.push(HUNDREDS[h]);
+  if (rem >= 10 && rem <= 19) {
+    parts.push(TEENS[rem - 10]);
+  } else {
+    const t = Math.floor(rem / 10);
+    const u = rem % 10;
+    if (t > 0) parts.push(TENS[t]);
+    if (u > 0) parts.push(ONES[u]);
+  }
+  return parts.join(" و ");
+}
+
+function toEnglishDigits(str: string): string {
+  return str
+    .replace(/[۰-۹]/g, (d) => String(d.charCodeAt(0) - 1776))
+    .replace(/[٠-٩]/g, (d) => String(d.charCodeAt(0) - 1632));
+}
+
+function numberToPersianWords(val: number | string | null | undefined): string {
+  if (val == null || val === "") return "";
+  const numStr = toEnglishDigits(String(val).trim());
+  const num = parseFloat(numStr);
+  if (isNaN(num)) return "";
+  if (num === 0) return "صفر";
+
+  const isNeg = num < 0;
+  const parts = Math.abs(num).toString().split(".");
+  const intStr = parts[0];
+  const decStr = parts[1];
+
+  let intNum = parseInt(intStr, 10);
+  let intResult = "";
+
+  if (intNum === 0) {
+    intResult = "صفر";
+  } else {
+    const chunks: number[] = [];
+    while (intNum > 0) {
+      chunks.push(intNum % 1000);
+      intNum = Math.floor(intNum / 1000);
+    }
+    const chunkWords: string[] = [];
+    for (let i = chunks.length - 1; i >= 0; i--) {
+      const c = chunks[i];
+      if (c > 0) {
+        const w = convertThreeDigits(c);
+        const s = SCALES[i];
+        chunkWords.push(s ? `${w} ${s}` : w);
+      }
+    }
+    intResult = chunkWords.join(" و ");
+  }
+
+  if (decStr && parseInt(decStr, 10) > 0) {
+    const cleanDecStr = decStr.slice(0, 4);
+    const decNum = parseInt(cleanDecStr, 10);
+    const decWord = numberToPersianWords(decNum);
+    const scale = DECIMAL_SCALES[cleanDecStr.length];
+    if (scale) {
+      if (intNum === 0) {
+        return `${isNeg ? "منفی " : ""}${decWord} ${scale}`;
+      }
+      return `${isNeg ? "منفی " : ""}${intResult} و ${decWord} ${scale}`;
+    }
+    return `${isNeg ? "منفی " : ""}${intResult} ممیز ${decWord}`;
+  }
+
+  return isNeg ? `منفی ${intResult}` : intResult;
+}
 
 interface CardDraft {
   domId: string;
   isNew: boolean;
   milestones: Milestone[];
-  label: string | null; // null = پیش‌فرض «گزینه N»
+  label: string | null;
 }
 
 export interface AcceptModalProps {
@@ -36,7 +158,6 @@ export interface AcceptModalProps {
   onClose: () => void;
 }
 
-// مودال پذیرش: انتخاب/ویرایش شرایط پرداخت + تخصیص قلم‌ها + فاکتورها
 export function AcceptModal({ quoteId, onClose }: AcceptModalProps) {
   const quotes = useQuotes();
   const suppliers = useSuppliers();
@@ -51,13 +172,13 @@ export function AcceptModal({ quoteId, onClose }: AcceptModalProps) {
   const [proformas, setProformas] = useState<Attachment[]>([]);
   const [removedItems, setRemovedItems] = useState<Set<string>>(new Set());
   const [assignments, setAssignments] = useState<Record<string, string>>({});
-  // تخصیص هر قلم به پروژه‌ها (نام‌ها)
   const [itemProjectsSel, setItemProjectsSel] = useState<Record<string, string>>({});
-  // تاریخ و زمان پذیرش — پیش‌فرض الان
+  const [itemAllocations, setItemAllocations] = useState<
+    Record<string, { rowId: string; project_name: string; quantity: number | string }[]>
+  >({});
   const [acceptDate, setAcceptDate] = useState<string | null>(() => new Date().toISOString());
   const [ready, setReady] = useState(false);
 
-  // وقتی quote باز شد، state اولیه را بساز
   useMemo(() => {
     if (!q) return;
     const offered = q.termsheets.filter((t) => t.status === "offered");
@@ -70,23 +191,39 @@ export function AcceptModal({ quoteId, onClose }: AcceptModalProps) {
     });
     setRemovedItems(rem);
     setAssignments({});
-    // پروژه‌ی هر قلم — تخصیصِ تکی: از تخصیص قبلی قلم، وگرنه اولین پروژه‌ی پیشنهاد
     const projSel: Record<string, string> = {};
+    const allocs: Record<string, { rowId: string; project_name: string; quantity: number | string }[]> = {};
     q.line_items.forEach((li) => {
       const names = (li.projects || []).map((p) => p.name).filter(Boolean);
-      projSel[li.id] = li.target_project?.name
+      const defaultProj = li.target_project?.name
         ? li.target_project.name
         : names.length
           ? names[0]
           : q.projects && q.projects.length
             ? q.projects[0]
             : q.project || "";
+      projSel[li.id] = defaultProj;
+      if (li.allocations && li.allocations.length) {
+        allocs[li.id] = li.allocations.map((a, idx) => ({
+          rowId: `alloc-${li.id}-${idx}`,
+          project_name: a.project_name,
+          quantity: a.quantity,
+        }));
+      } else {
+        allocs[li.id] = [
+          {
+            rowId: `alloc-${li.id}-0`,
+            project_name: defaultProj,
+            quantity: li.quantity ?? 1,
+          },
+        ];
+      }
     });
     setItemProjectsSel(projSel);
+    setItemAllocations(allocs);
     setReady(true);
   }, [q]);
 
-  // پیوست‌ها مستقیماً از سرور (MinIO) خوانده می‌شوند — نه از state محلی
   useEffect(() => {
     if (!quoteId) return;
     let alive = true;
@@ -109,7 +246,6 @@ export function AcceptModal({ quoteId, onClose }: AcceptModalProps) {
   const allItems = q.line_items || [];
   const active = activeItems(q);
 
-  // گزینه‌های پروژه — پروژه‌های ثبت‌شده + پروژه‌های این پیشنهاد + تخصیص‌های قبلی قلم‌ها
   const projectOptions = (() => {
     const set = new Set<string>();
     projects.forEach((p) => p.name && set.add(p.name));
@@ -144,13 +280,49 @@ export function AcceptModal({ quoteId, onClose }: AcceptModalProps) {
     setAssignments((a) => ({ ...a, [liId]: domId }));
   };
 
+  const addAllocationRow = (liId: string, totalQty: number) => {
+    setItemAllocations((prev) => {
+      const currentList = prev[liId] || [];
+      const currentSum = currentList.reduce((sum, a) => sum + (parseFloat(String(a.quantity)) || 0), 0);
+      const remaining = Math.max(0, Math.round((totalQty - currentSum) * 10000) / 10000);
+      const usedProjects = new Set(currentList.map((a) => a.project_name).filter(Boolean));
+      const firstAvailable = projectOptions.find((p) => !usedProjects.has(p)) || "";
+      const newRow = {
+        rowId: `alloc-${liId}-${Date.now()}-${Math.random().toString(36).slice(2, 6)}`,
+        project_name: firstAvailable,
+        quantity: remaining > 0 ? remaining : "",
+      };
+      return { ...prev, [liId]: [...currentList, newRow] };
+    });
+  };
+
+  const removeAllocationRow = (liId: string, rowId: string) => {
+    setItemAllocations((prev) => {
+      const currentList = prev[liId] || [];
+      if (currentList.length <= 1) return prev;
+      return { ...prev, [liId]: currentList.filter((a) => a.rowId !== rowId) };
+    });
+  };
+
+  const updateAllocationRow = (
+    liId: string,
+    rowId: string,
+    patch: Partial<{ project_name: string; quantity: number | string }>,
+  ) => {
+    setItemAllocations((prev) => {
+      const currentList = prev[liId] || [];
+      return {
+        ...prev,
+        [liId]: currentList.map((a) => (a.rowId === rowId ? { ...a, ...patch } : a)),
+      };
+    });
+  };
+
   const confirm = () => {
     if (!q) return;
 
-    // پچ نهایی — همه‌ی تغییرات روی همین کلون اعمال می‌شود (نه روی آبجکت store)
     const next: Quote = JSON.parse(JSON.stringify(q));
 
-    // فقط کارت‌هایی با حداقل یک مرحله‌ی پرداخت
     const cardMeta = new Map<string, { milestones: Milestone[]; label: string; existing: Quote["termsheets"][number] | undefined }>();
     cards.forEach((c, idx) => {
       const milestones = c.milestones.filter((m) => m.when_iso || m.amount != null);
@@ -164,21 +336,20 @@ export function AcceptModal({ quoteId, onClose }: AcceptModalProps) {
     });
 
     if (!cardMeta.size) {
-      toast.error("حداقل یک conditions با حداقل یک مرحله پرداخت لازم است.");
+      toast.error("حداقل یک شرایط پرداخت با حداقل یک مرحله پرداخت لازم است.");
       return;
     }
 
-    // رد کردن قلم‌ها — در داده می‌مانند تا با بازگشت وضعیت برگردند
     next.line_items.forEach((li) => {
       if (removedItems.has(li.id)) li.rejected = true;
     });
+
     const active = activeItems(next);
     if (!active.length) {
       toast.error("همه‌ی قلم‌ها رد شده‌اند؛ حداقل یک قلم لازم است.");
       return;
     }
 
-    // فقط termsheetهایی که حداقل یک قلم انتخاب کرده پذیرفته می‌شوند
     const fallbackDom = [...cardMeta.keys()][0];
     const chosenDomIds = new Set<string>();
     active.forEach((li) => {
@@ -200,7 +371,6 @@ export function AcceptModal({ quoteId, onClose }: AcceptModalProps) {
       }
     });
 
-    // قلم‌ها: اتصال‌های offered حفظ می‌شوند + جفت پذیرفته‌شده ثبت می‌شود
     active.forEach((li) => {
       const dom = assignments[li.id] || fallbackDom;
       const finalId = domToFinal[dom];
@@ -210,7 +380,6 @@ export function AcceptModal({ quoteId, onClose }: AcceptModalProps) {
       li.accepted_ts_id = finalId || null;
     });
 
-    // termsheet پذیرفته‌شده‌ای که هیچ قلمی انتخابش نکرده → برمی‌گردد به offered
     const usedIds = new Set<string>();
     active.forEach((li) => {
       if (li.accepted_ts_id) usedIds.add(li.accepted_ts_id);
@@ -219,13 +388,60 @@ export function AcceptModal({ quoteId, onClose }: AcceptModalProps) {
       if (t.status === "accepted" && !usedIds.has(t.id)) t.status = "offered";
     });
 
-    // پروژه‌ی هر قلم (تکی هدف خرید) — فقط target_project تنظیم می‌شود؛
-    // li.projects و next.projects دست‌نخورده باقی می‌مانند تا پروژه‌های کاندیدای اولیه حفظ شوند
+    for (const li of active) {
+      const allocs = itemAllocations[li.id] || [];
+      const m = materialById(materials, li.material_id);
+      const title = formatMaterialTitle(m);
+      const targetQty = Number(li.quantity ?? 0);
+
+      if (!allocs.length) {
+        toast.error(`برای قلم «${title}» حداقل یک ردیف تخصیص به پروژه لازم است.`);
+        return;
+      }
+
+      for (const a of allocs) {
+        if (!a.project_name.trim()) {
+          toast.error(`برای قلم «${title}»، لطفاً پروژهٔ تمام ردیف‌های تخصیص را مشخص کنید.`);
+          return;
+        }
+        const qVal = parseFloat(String(a.quantity));
+        if (isNaN(qVal) || qVal <= 0) {
+          toast.error(`برای قلم «${title}»، مقدار تخصیص باید عددی بزرگ‌تر از صفر باشد.`);
+          return;
+        }
+      }
+
+      const pNames = allocs.map((a) => a.project_name.trim());
+      if (new Set(pNames).size !== pNames.length) {
+        toast.error(`برای قلم «${title}»، پروژهٔ تکراری در ردیف‌های تخصیص انتخاب شده است.`);
+        return;
+      }
+
+      const sumQty = allocs.reduce((sum, a) => sum + (parseFloat(String(a.quantity)) || 0), 0);
+      const diff = Math.abs(sumQty - targetQty);
+      if (diff > 0.0001) {
+        toast.error(
+          `مجموع مقادیر تخصیص‌یافته برای «${title}» (${fmtNum(sumQty)} ${li.unit}) با مقدار کل قلم (${fmtNum(targetQty)} ${li.unit}) برابر نیست.`
+        );
+        return;
+      }
+    }
+
     next.line_items.forEach((li) => {
       if (li.rejected) return;
-      const name = itemProjectsSel[li.id];
-      if (name === undefined) return;
-      li.target_project = name ? { id: "", name } : null;
+      const allocs = itemAllocations[li.id];
+      if (allocs && allocs.length) {
+        li.allocations = allocs.map((a) => ({
+          project_name: a.project_name.trim(),
+          quantity: parseFloat(String(a.quantity)) || 0,
+        }));
+        li.target_project = { id: "", name: allocs[0].project_name.trim() };
+      } else {
+        const name = itemProjectsSel[li.id];
+        if (name !== undefined) {
+          li.target_project = name ? { id: "", name } : null;
+        }
+      }
     });
 
     const now = new Date().toISOString();
@@ -242,198 +458,375 @@ export function AcceptModal({ quoteId, onClose }: AcceptModalProps) {
 
   return (
     <Dialog open={!!quoteId} onOpenChange={(o) => !o && onClose()}>
-      <DialogContent className="max-w-2xl">
-        <DialogHeader>
-          <DialogTitle>پذیرش پیشنهاد — {sup.name}</DialogTitle>
-        </DialogHeader>
+      <DialogContent className="max-w-3xl p-0 gap-0 overflow-hidden bg-slate-50 border-none shadow-2xl rounded-xl">
+        <div className="flex flex-col max-h-[85vh] w-full">
+          
+          {/* هدر ثابت */}
+          <div className="px-6 py-4 bg-white border-b border-line shrink-0 z-10 text-right">
+            <DialogHeader className="p-0 text-right">
+              <DialogTitle className="text-right text-lg font-bold text-slate-800">
+                پذیرش پیشنهاد — {sup.name}
+              </DialogTitle>
+            </DialogHeader>
+            <p className="text-[13px] text-muted mt-1 text-right">
+              شرایط پرداخت را ویرایش کنید. سپس هر قلم را به بخش و پروژه دلخواه تخصیص دهید.
+            </p>
+          </div>
 
-        <div className="text-[12px] text-muted">
-          شرایط پرداخت را انتخاب یا ویرایش کنید. سپس هر قلم را به conditions دلخواه تخصیص دهید.
-        </div>
-
-        {/* کارت‌های termsheet */}
-        <div className="flex flex-col gap-2">
-          {cards.map((c, idx) => (
-            <div key={c.domId} className="modal-variant">
-              <div className="modal-variant-head">
-                <span className="variant-num">{cardLabel(c, idx)}</span>
-                <button type="button" className="variant-x" title="حذف" onClick={() => removeCard(c.domId)}>
-                  ×
-                </button>
-              </div>
-              <div className="flex flex-col gap-1.5">
-                {c.milestones.map((m, i) => (
-                  <MilestoneRow
-                    key={i}
-                    milestone={m}
-                    onChange={(nextM) => {
-                      const ms = [...c.milestones];
-                      ms[i] = nextM;
-                      updateCard(c.domId, { milestones: ms });
-                    }}
-                    onRemove={() => updateCard(c.domId, { milestones: c.milestones.filter((_, j) => j !== i) })}
-                  />
+          {/* بدنه اسکرول‌پذیر */}
+          <div className="flex-1 overflow-y-auto p-4 md:p-6 space-y-5">
+            
+            {/* بخش ۱: تنظیم شرایط پرداخت */}
+            <section className="bg-white rounded-xl shadow-sm border border-line p-4 md:p-5">
+              <h3 className="mb-4 text-[14px] font-bold text-slate-800">۱. تنظیم شرایط پرداخت</h3>
+              <div className="flex flex-col gap-4">
+                {cards.map((c, idx) => (
+                  <div key={c.domId} className="modal-variant bg-slate-50/50 rounded-lg border border-line p-3">
+                    <div className="modal-variant-head mb-2 flex items-center justify-between">
+                      <span className="variant-num font-semibold text-primary">{cardLabel(c, idx)}</span>
+                      <button type="button" className="text-red-500 hover:text-red-700 hover:bg-red-50 rounded-full w-6 h-6 flex items-center justify-center transition-colors" title="حذف" onClick={() => removeCard(c.domId)}>
+                        ×
+                      </button>
+                    </div>
+                    <div className="flex flex-col gap-2">
+                      {c.milestones.map((m, i) => (
+                        <MilestoneRow
+                          key={i}
+                          milestone={m}
+                          onChange={(nextM) => {
+                            const ms = [...c.milestones];
+                            ms[i] = nextM;
+                            updateCard(c.domId, { milestones: ms });
+                          }}
+                          onRemove={() => updateCard(c.domId, { milestones: c.milestones.filter((_, j) => j !== i) })}
+                        />
+                      ))}
+                    </div>
+                    <Button variant="ghost" size="sm" className="mt-3 text-xs text-primary bg-primary/5 hover:bg-primary/10" onClick={() => updateCard(c.domId, { milestones: [...c.milestones, { when_iso: null, amount: null }] })}>
+                      ＋ مرحله پرداخت جدید
+                    </Button>
+                  </div>
                 ))}
               </div>
-              <Button variant="line" size="sm" className="mt-1.5" onClick={() => updateCard(c.domId, { milestones: [...c.milestones, { when_iso: null, amount: null }] })}>
-                ＋ مرحله پرداخت
+              <Button variant="line" size="sm" className="mt-4 border-dashed border-primary/50 text-primary hover:bg-primary/5" onClick={addNewCard}>
+                ＋ افزودن شرایط پرداخت جدید
               </Button>
-            </div>
-          ))}
-        </div>
-        <Button variant="line" size="sm" className="self-start" onClick={addNewCard}>
-          ＋ نوشتن conditions جدید
-        </Button>
+            </section>
 
-        {/* تخصیص قلم‌ها */}
-        <div className="border-t border-line pt-3">
-          <div className="mb-1 text-[13px] font-bold">تخصیص قلم‌ها به conditions:</div>
-          <div className="mb-2 text-[11.5px] text-muted">
-            قلمی که می‌خرید را تیک بزنید؛ قلمی که نمی‌خرید را بدون تیک رها کنید تا از معامله حذف شود.
-          </div>
-          <div>
-            {allItems.map((li) => {
-              const removed = removedItems.has(li.id);
-              const m = materialById(materials, li.material_id);
-              return (
-                <div key={li.id} className={`accept-item-assign-row ${removed ? "rejected" : ""}`}>
-                  <input
-                    type="checkbox"
-                    className="accent-accent"
-                    checked={!removed}
-                    title="تیک = در معامله می‌ماند"
-                    onChange={(e) => {
-                      const next = new Set(removedItems);
-                      if (e.target.checked) next.delete(li.id);
-                      else next.add(li.id);
-                      setRemovedItems(next);
-                    }}
-                  />
-                  <span className="flex-1 text-[13px]">
-                    {formatMaterialTitle(m)}
-                  </span>
-                  <span className="text-[12px] text-muted">
-                    {fmtNum(li.quantity)} {li.unit} × {groupCommas(li.unit_price, true)}
-                  </span>
-                  <select
-                    className="min-w-[140px] rounded-md border border-line bg-panel px-2 py-1.5 font-inherit text-[12px]"
-                    value={assignments[li.id] || cards[0]?.domId || ""}
-                    onChange={(e) => assign(li.id, e.target.value)}
-                  >
-                    {cards.map((c, idx) => (
-                      <option key={c.domId} value={c.domId}>
-                        {cardLabel(c, idx)}
-                      </option>
-                    ))}
-                  </select>
-                </div>
-              );
-            })}
-            {active.length === 0 && (
-              <div className="mb-1 text-[12px] text-red">همه‌ی قلم‌ها رد شده‌اند — حداقل یک قلم را تیک بزنید.</div>
-            )}
-          </div>
-        </div>
-
-        {/* تخصیص قلم‌ها به پروژه */}
-        <div className="border-t border-line pt-3">
-          <div className="mb-1 text-[13px] font-bold">پروژه‌ی هر قلم:</div>
-          <div className="mb-2 text-[11.5px] text-muted">
-            برای هر متریال فقط یک پروژه انتخاب می‌شود — مثل شرایط پرداخت.
-          </div>
-          <div className="flex flex-col gap-2">
-            {allItems
-              .filter((li) => !removedItems.has(li.id))
-              .map((li) => {
-                const m = materialById(materials, li.material_id);
-                return (
-                  <div key={li.id} className="rounded-lg border border-line p-2.5">
-                    <div className="mb-1.5 text-[12.5px]">
-                      <span className="font-semibold">
-                        {formatMaterialTitle(m)}
-                      </span>
-                      <span className="ms-2 text-[11px] text-muted">
-                        {fmtNum(li.quantity)} {li.unit}
-                      </span>
-                    </div>
-                    {projectOptions.length ? (
+            {/* بخش ۲: تخصیص اقلام */}
+            <section className="bg-white rounded-xl shadow-sm border border-line p-4 md:p-5">
+              <h3 className="mb-1 text-[14px] font-bold text-slate-800">۲. تخصیص اقلام به شرایط پرداخت</h3>
+              <div className="mb-4 text-[12px] text-muted">
+                قلمی که می‌خرید را تیک بزنید؛ قلمی که نمی‌خرید را بدون تیک رها کنید تا از معامله حذف شود.
+              </div>
+              <div className="flex flex-col gap-2">
+                {allItems.map((li) => {
+                  const removed = removedItems.has(li.id);
+                  const m = materialById(materials, li.material_id);
+                  return (
+                    <div 
+                      key={li.id} 
+                      className={`accept-item-assign-row flex flex-wrap sm:flex-nowrap items-center gap-3 p-3 rounded-lg border border-line transition-all ${removed ? "bg-slate-50 opacity-60 grayscale" : "bg-white hover:border-primary/30"}`}
+                    >
+                      <input
+                        type="checkbox"
+                        className="accent-primary w-4 h-4 rounded cursor-pointer shrink-0"
+                        checked={!removed}
+                        title="تیک = در معامله می‌ماند"
+                        onChange={(e) => {
+                          const next = new Set(removedItems);
+                          if (e.target.checked) next.delete(li.id);
+                          else next.add(li.id);
+                          setRemovedItems(next);
+                        }}
+                      />
+                      <div className="flex-1 min-w-[120px]">
+                        <div className="text-[13.5px] font-medium text-slate-800">
+                          {formatMaterialTitle(m)}
+                        </div>
+                        <div className="text-[12px] text-muted mt-0.5">
+                          {fmtNum(li.quantity)} {li.unit} × {groupCommas(li.unit_price, true)}
+                        </div>
+                      </div>
+                      
                       <select
-                        className="min-w-[180px] rounded-md border border-line bg-panel px-2 py-1.5 font-inherit text-[12px]"
-                        value={itemProjectsSel[li.id] ?? ""}
-                        onChange={(e) =>
-                          setItemProjectsSel((s) => ({ ...s, [li.id]: e.target.value }))
-                        }
+                        className={`min-w-[160px] h-9 rounded-md border border-line bg-panel px-2.5 py-1.5 font-inherit text-[12px] outline-none transition-all ${!removed ? 'focus:border-primary focus:ring-1 focus:ring-primary' : 'cursor-not-allowed'}`}
+                        value={assignments[li.id] || cards[0]?.domId || ""}
+                        onChange={(e) => assign(li.id, e.target.value)}
+                        disabled={removed}
                       >
-                        {(itemProjectsSel[li.id] ? [] : [{ name: "" }]).map((_, i) => (
-                          <option key={i} value="">
-                            انتخاب پروژه...
-                          </option>
-                        ))}
-                        {projectOptions.map((n) => (
-                          <option key={n} value={n}>
-                            {n}
+                        {cards.map((c, idx) => (
+                          <option key={c.domId} value={c.domId}>
+                            {cardLabel(c, idx)}
                           </option>
                         ))}
                       </select>
-                    ) : (
-                      <div className="text-[12px] text-muted">پروژه‌ای ثبت نشده است.</div>
-                    )}
+                    </div>
+                  );
+                })}
+                {active.length === 0 && (
+                  <div className="mt-2 p-3 bg-red-50 text-red-600 rounded-md text-[13px] font-medium flex items-center gap-2">
+                    <span>⚠️</span> همه‌ی قلم‌ها رد شده‌اند — حداقل یک قلم را تیک بزنید.
                   </div>
-                );
-              })}
+                )}
+              </div>
+            </section>
+
+            {/* بخش ۳: تخصیص اقلام به پروژه‌ها */}
+            <section className="bg-white rounded-xl shadow-sm border border-line p-4 md:p-5">
+              <div className="flex items-center justify-between mb-1">
+                <h3 className="text-[14px] font-bold text-slate-800">۳. تخصیص اقلام به پروژه‌ها</h3>
+              </div>
+              <div className="mb-4 text-[12px] text-muted">
+                مشخص کنید چه مقداری از هر قلم به کدام پروژه اختصاص داده می‌شود. در صورت خرید یک کالا برای چند پروژه، می‌توانید آن را به چند سطر تفکیک کنید.
+              </div>
+
+              {projectOptions.length === 0 ? (
+                <div className="text-[12px] text-amber-700 bg-amber-50 border border-amber-200 p-3 rounded-md text-center">
+                  ⚠️ هیچ پروژه‌ای در سیستم ثبت نشده است. لطفاً ابتدا از بخش پروژه‌ها، حداقل یک پروژه ایجاد کنید.
+                </div>
+              ) : (
+                <div className="flex flex-col gap-4">
+                  {allItems
+                    .filter((li) => !removedItems.has(li.id))
+                    .map((li) => {
+                      const m = materialById(materials, li.material_id);
+                      const targetQty = Number(li.quantity ?? 0);
+                      const allocs = itemAllocations[li.id] || [];
+                      const allocSum = allocs.reduce(
+                        (sum, a) => sum + (parseFloat(String(a.quantity)) || 0),
+                        0
+                      );
+                      const diff = Math.round((targetQty - allocSum) * 10000) / 10000;
+                      const isComplete = Math.abs(diff) < 0.0001;
+                      const isOver = diff < -0.0001;
+
+                      return (
+                        <div
+                          key={li.id}
+                          className="rounded-xl border border-line bg-slate-50/50 p-4 transition-all hover:border-primary/30"
+                        >
+                          {/* هدر کارت قلم */}
+                          <div className="flex flex-wrap items-center justify-between gap-2 mb-3 pb-2.5 border-b border-line/60">
+                            <div className="flex items-center gap-2">
+                              <Building2 className="w-4 h-4 text-primary shrink-0" />
+                              <span className="text-[13.5px] font-bold text-slate-800">
+                                {formatMaterialTitle(m)}
+                              </span>
+                            </div>
+
+                            <div className="flex items-center gap-2">
+                              <span className="text-[11px] font-medium text-slate-600 bg-white border border-line px-2.5 py-0.5 rounded-full">
+                                کل: {fmtNum(targetQty)} {li.unit}
+                              </span>
+
+                              {isComplete ? (
+                                <span className="inline-flex items-center gap-1 text-[11px] font-semibold text-emerald-700 bg-emerald-50 border border-emerald-200 px-2.5 py-0.5 rounded-full">
+                                  <CheckCircle2 className="w-3 h-3" />
+                                  تخصیص کامل ({fmtNum(allocSum)} {li.unit})
+                                </span>
+                              ) : isOver ? (
+                                <span className="inline-flex items-center gap-1 text-[11px] font-semibold text-red-700 bg-red-50 border border-red-200 px-2.5 py-0.5 rounded-full">
+                                  <AlertCircle className="w-3 h-3" />
+                                  مازاد تخصیص: {fmtNum(Math.abs(diff))} {li.unit}
+                                </span>
+                              ) : (
+                                <span className="inline-flex items-center gap-1 text-[11px] font-semibold text-amber-700 bg-amber-50 border border-amber-200 px-2.5 py-0.5 rounded-full">
+                                  <AlertCircle className="w-3 h-3" />
+                                  باقیمانده: {fmtNum(diff)} {li.unit}
+                                </span>
+                              )}
+                            </div>
+                          </div>
+
+                          {/* ردیف‌های تخصیص — تراز افقی یکپارچه بدون جابجایی دکمه‌ها */}
+                          <div className="flex flex-col gap-2.5 mb-3">
+                            {allocs.map((alloc) => {
+                              const otherUsedProjects = new Set(
+                                allocs
+                                  .filter((a) => a.rowId !== alloc.rowId)
+                                  .map((a) => a.project_name.trim())
+                                  .filter(Boolean)
+                              );
+
+                              const words = numberToPersianWords(alloc.quantity);
+
+                              return (
+                                <div
+                                  key={alloc.rowId}
+                                  className="flex flex-col sm:flex-row items-start gap-2.5 bg-white p-3 rounded-lg border border-line shadow-xs"
+                                >
+                                  {/* انتخاب پروژه و دکمه حذف موبایل */}
+                                  <div className="flex items-center gap-2 flex-1 w-full sm:w-auto">
+                                    <div className="flex-1 min-w-0">
+                                      <select
+                                        className="w-full h-9 rounded-md border border-line bg-panel px-2.5 py-1 font-inherit text-[12px] outline-none focus:border-primary focus:ring-1 focus:ring-primary transition-all text-slate-700"
+                                        value={alloc.project_name}
+                                        onChange={(e) =>
+                                          updateAllocationRow(li.id, alloc.rowId, {
+                                            project_name: e.target.value,
+                                          })
+                                        }
+                                      >
+                                        <option value="">انتخاب پروژه...</option>
+                                        {projectOptions.map((p) => {
+                                          const isUsed = otherUsedProjects.has(p);
+                                          return (
+                                            <option key={p} value={p} disabled={isUsed}>
+                                              {p} {isUsed ? "(در ردیف دیگر انتخاب شده)" : ""}
+                                            </option>
+                                          );
+                                        })}
+                                      </select>
+                                    </div>
+
+                                    {/* دکمه حذف موبایل */}
+                                    <button
+                                      type="button"
+                                      disabled={allocs.length <= 1}
+                                      onClick={() => removeAllocationRow(li.id, alloc.rowId)}
+                                      className="sm:hidden h-9 w-9 flex items-center justify-center rounded-md border border-line text-slate-400 hover:text-red-600 hover:bg-red-50 hover:border-red-200 transition-colors disabled:opacity-30 disabled:pointer-events-none shrink-0"
+                                      title="حذف این ردیف تخصیص"
+                                    >
+                                      <Trash2 className="w-3.5 h-3.5" />
+                                    </button>
+                                  </div>
+
+                                  {/* فیلد مقدار بدون اسپینر + واحد ثابت + متن حروفی */}
+                                  <div className="flex flex-col w-full sm:w-44 shrink-0">
+                                    <div className="flex items-stretch h-9 rounded-md border border-line bg-panel overflow-hidden focus-within:border-primary focus-within:ring-1 focus-within:ring-primary transition-all">
+                                      <input
+                                        type="number"
+                                        step="any"
+                                        min="0"
+                                        placeholder="مقدار"
+                                        className="flex-1 min-w-0 h-full bg-transparent px-2.5 py-1 font-inherit text-[12px] outline-none text-left font-mono [appearance:textfield] [&::-webkit-outer-spin-button]:appearance-none [&::-webkit-inner-spin-button]:appearance-none"
+                                        style={{ MozAppearance: "textfield" }}
+                                        dir="ltr"
+                                        value={alloc.quantity}
+                                        onChange={(e) =>
+                                          updateAllocationRow(li.id, alloc.rowId, {
+                                            quantity: e.target.value,
+                                          })
+                                        }
+                                      />
+                                      <div
+                                        className="px-2.5 bg-slate-100 border-s border-line text-slate-600 text-[12px] font-medium flex items-center justify-center shrink-0 select-none min-w-[42px]"
+                                        title={`واحد: ${li.unit}`}
+                                      >
+                                        {li.unit}
+                                      </div>
+                                    </div>
+
+                                    {words ? (
+                                      <div className="mt-1 text-[11px] text-slate-500 font-medium px-0.5 leading-tight text-right truncate" title={`${words} ${li.unit}`}>
+                                        {words} {li.unit}
+                                      </div>
+                                    ) : null}
+                                  </div>
+
+                                  {/* دکمه حذف دسکتاپ — تراز شده با لبه بالای دراپ‌داون و اینپوت */}
+                                  <button
+                                    type="button"
+                                    disabled={allocs.length <= 1}
+                                    onClick={() => removeAllocationRow(li.id, alloc.rowId)}
+                                    className="hidden sm:flex h-9 w-9 items-center justify-center rounded-md border border-line text-slate-400 hover:text-red-600 hover:bg-red-50 hover:border-red-200 transition-colors disabled:opacity-30 disabled:pointer-events-none shrink-0"
+                                    title="حذف این ردیف تخصیص"
+                                  >
+                                    <Trash2 className="w-3.5 h-3.5" />
+                                  </button>
+                                </div>
+                              );
+                            })}
+                          </div>
+
+                          {/* فوتر کارت قلم */}
+                          <div className="flex items-center justify-between pt-1">
+                            <button
+                              type="button"
+                              onClick={() => addAllocationRow(li.id, targetQty)}
+                              disabled={
+                                allocs.length >= projectOptions.length && projectOptions.length > 0
+                              }
+                              className="inline-flex items-center gap-1.5 text-[12px] font-medium text-primary hover:text-primary/80 transition-colors disabled:opacity-40 disabled:cursor-not-allowed"
+                            >
+                              <Plus className="w-3.5 h-3.5" />
+                              <span>افزودن ردیف تخصیص (پروژه دیگر)</span>
+                            </button>
+                            <span className="text-[11px] text-muted">
+                              مجموع: {fmtNum(allocSum)} از {fmtNum(targetQty)} {li.unit}
+                            </span>
+                          </div>
+                        </div>
+                      );
+                    })}
+                </div>
+              )}
+            </section>
+
+            {/* بخش ۴: فاکتورها، پیش‌فاکتورها و تاریخ */}
+            <section className="bg-white rounded-xl shadow-sm border border-line p-4 md:p-5 space-y-6">
+              <div>
+                <h3 className="mb-2 text-[14px] font-bold text-slate-800">فاکتورهای اصلی</h3>
+                <FileList
+                  files={invoices}
+                  onChange={setInvoices}
+                  upload={(f) => api.files.upload(q.id, "invoice", f)}
+                  onDelete={(a) =>
+                    a.id &&
+                    void api.files.remove(q.id, "invoice", a.id).catch((err) =>
+                      toast.error(err instanceof Error ? err.message : "حذف فاکتور ناموفق بود"),
+                    )
+                  }
+                  onDownload={(a) => api.files.download(q.id, "invoice", a.id!, a.name)}
+                  loadPreview={(a) => api.files.previewUrl(q.id, "invoice", a.id!)}
+                />
+              </div>
+
+              <div className="h-px bg-line w-full"></div>
+
+              <div>
+                <h3 className="mb-2 text-[14px] font-bold text-slate-800">پیش‌فاکتورها</h3>
+                <FileList
+                  files={proformas}
+                  onChange={setProformas}
+                  upload={(f) => api.files.upload(q.id, "proforma", f)}
+                  onDelete={(a) =>
+                    a.id &&
+                    void api.files.remove(q.id, "proforma", a.id).catch((err) =>
+                      toast.error(err instanceof Error ? err.message : "حذف پیش‌فاکتور ناموفق بود"),
+                    )
+                  }
+                  onDownload={(a) => api.files.download(q.id, "proforma", a.id!, a.name)}
+                  loadPreview={(a) => api.files.previewUrl(q.id, "proforma", a.id!)}
+                  label="افزودن پیش‌فاکتور"
+                />
+              </div>
+
+              <div className="h-px bg-line w-full"></div>
+
+              <div className="max-w-xs">
+                <label className="block mb-2 text-[13px] font-bold text-slate-800">تاریخ و زمان پذیرش</label>
+                <JalaliDatePicker value={acceptDate} onChange={setAcceptDate} placeholder="تاریخ و ساعت" withTime />
+              </div>
+            </section>
+
           </div>
-        </div>
 
-        {/* فاکتورهای اصلی */}
-        <div className="border-t border-line pt-3">
-          <div className="mb-1 text-[13px] font-bold">فاکتورهای اصلی (چند فایل):</div>
-          <FileList
-            files={invoices}
-            onChange={setInvoices}
-            upload={(f) => api.files.upload(q.id, "invoice", f)}
-            onDelete={(a) =>
-              a.id &&
-              void api.files.remove(q.id, "invoice", a.id).catch((err) =>
-                toast.error(err instanceof Error ? err.message : "حذف فاکتور ناموفق بود"),
-              )
-            }
-            onDownload={(a) => api.files.download(q.id, "invoice", a.id!, a.name)}
-          />
-        </div>
-
-        {/* پیش‌فاکتورها */}
-        <div className="border-t border-line pt-3">
-          <div className="mb-1 text-[13px] font-bold">پیش‌فاکتورها (چند فایل):</div>
-          <FileList
-            files={proformas}
-            onChange={setProformas}
-            upload={(f) => api.files.upload(q.id, "proforma", f)}
-            onDelete={(a) =>
-              a.id &&
-              void api.files.remove(q.id, "proforma", a.id).catch((err) =>
-                toast.error(err instanceof Error ? err.message : "حذف پیش‌فاکتور ناموفق بود"),
-              )
-            }
-            onDownload={(a) => api.files.download(q.id, "proforma", a.id!, a.name)}
-            label="افزودن پیش‌فاکتور"
-          />
-        </div>
-
-        {/* تاریخ و زمان پذیرش */}
-        <div className="border-t border-line pt-3">
-          <div className="field max-w-xs">
-            <label>تاریخ و زمان پذیرش</label>
-            <JalaliDatePicker value={acceptDate} onChange={setAcceptDate} placeholder="تاریخ و ساعت" withTime />
+          {/* فوتر ثابت */}
+          <div className="px-6 py-4 bg-white border-t border-line shrink-0 z-10">
+            <DialogFooter className="flex w-full gap-3 sm:justify-end">
+              <Button variant="slate" onClick={onClose} className="w-full sm:w-auto">
+                انصراف
+              </Button>
+              <Button onClick={confirm} className="w-full sm:w-auto">
+                ثبت معامله بسته‌شده
+              </Button>
+            </DialogFooter>
           </div>
-        </div>
 
-        <DialogFooter>
-          <Button variant="slate" onClick={onClose}>
-            انصراف
-          </Button>
-          <Button onClick={confirm}>ثبت معامله بسته‌شده</Button>
-        </DialogFooter>
+        </div>
       </DialogContent>
     </Dialog>
   );
-}
+}

frontend/src/pages/Dashboard/DashboardPage.tsx

@@ -11,16 +11,15 @@ import {
 } from "../../hooks";
 import { useAppStore } from "../../store";
 import { filterQuotes } from "../../lib/quoteUtils";
-import { daysBetween } from "../../lib/formatters";
 import { Header, PageLayout } from "../../components/layout/Header";
-import { StatsBar } from "../../components/StatsBar";
+import { StatsBar, type StatusFilter } from "../../components/StatsBar";
 import { FilterToolbar, type Filters } from "./FilterToolbar";
 import { LedgerTable } from "./LedgerTable";
 import { AppSwitcherMenu } from "../../components/AppSwitcherMenu";
 import { AcceptModal } from "./AcceptModal";
 import { EditModal } from "./EditModal";
 
-const EMPTY_FILTERS: Filters = { category: "", supplier: "", status: "", search: "" };
+const EMPTY_FILTERS: Filters = { supplier: "", status: "", search: "" };
 
 export function DashboardPage() {
   useStoreData();
@@ -29,7 +28,7 @@ export function DashboardPage() {
   const suppliers = useSuppliers();
   const materials = useMaterials();
   const projects = useProjects();
-  const { categoryUnits, unitConversions, standardConversions } = useUnits();
+  const { standardConversions } = useUnits();
 
   const expandedQuoteIds = useAppStore((s) => s.expandedQuoteIds);
   const toggleExpand = useAppStore((s) => s.toggleExpand);
@@ -41,8 +40,8 @@ export function DashboardPage() {
   const [editId, setEditId] = useState<string | null>(null);
 
   const store = useMemo(
-    () => ({ quotes, suppliers, materials, projects, categoryUnits, unitConversions, standardConversions, topics }),
-    [quotes, suppliers, materials, projects, categoryUnits, unitConversions, standardConversions, topics],
+    () => ({ quotes, suppliers, materials, projects, standardConversions, topics }),
+    [quotes, suppliers, materials, projects, standardConversions, topics],
   );
 
   // فیلتر + مرتب‌سازی بر اساس زمان ساخت (created_at)
@@ -56,19 +55,31 @@ export function DashboardPage() {
     return [...list].sort((a, b) => (sortDir === "desc" ? createdTs(b) - createdTs(a) : createdTs(a) - createdTs(b)));
   }, [store, filters, sortDir]);
 
+  // شمارش تفکیکی پیشنهادها بر اساس پایپ‌لاین خرید
   const stats = useMemo(() => {
     const total = quotes.length;
     const offered = quotes.filter((q) => q.status === "offered").length;
     const accepted = quotes.filter((q) => q.status === "accepted").length;
-    const leadTimes = quotes
-      .filter((q) => q.status === "arrived" && q.accepted_date && q.arrived_date)
-      .map((q) => daysBetween(q.arrived_date, q.accepted_date))
-      .filter((x): x is number => x != null);
-    const avgLead = leadTimes.length ? Math.round(leadTimes.reduce((a, b) => a + b, 0) / leadTimes.length) : null;
-    return { total, offered, accepted, avgLead };
+    const arrived = quotes.filter((q) => q.status === "arrived").length;
+    return { total, offered, accepted, arrived };
   }, [quotes]);
 
-  const categoryOptions = useMemo(() => [...new Set(materials.map((m) => m.category))], [materials]);
+  // وضعیت فعال در StatsBar بر اساس مقدار فعلی filters.status
+  const activeStatusFilter: StatusFilter = useMemo(() => {
+    if (filters.status === "offered") return "offered";
+    if (filters.status === "accepted") return "accepted";
+    if (filters.status === "arrived") return "arrived";
+    return "all";
+  }, [filters.status]);
+
+  // تغییر فیلتر وضعیت هنگام کلیک روی هر یک از ۴ کارت
+  const handleStatusFilterChange = (status: StatusFilter) => {
+    setFilters((prev) => ({
+      ...prev,
+      status: status === "all" ? "" : status,
+    }));
+  };
+
   const supplierOptions = useMemo(() => suppliers.map((s) => ({ id: s.id, name: s.name })), [suppliers]);
 
   return (
@@ -119,12 +130,13 @@ export function DashboardPage() {
           total={stats.total}
           offered={stats.offered}
           accepted={stats.accepted}
-          avgLeadTime={stats.avgLead}
+          arrived={stats.arrived}
+          activeFilter={activeStatusFilter}
+          onFilterChange={handleStatusFilterChange}
         />
         <FilterToolbar
           filters={filters}
           onChange={setFilters}
-          categories={categoryOptions}
           suppliers={supplierOptions}
           sortDir={sortDir}
           onToggleSort={() => setSortDir((d) => (d === "desc" ? "asc" : "desc"))}

frontend/src/pages/Dashboard/FilterToolbar.tsx

@@ -1,22 +1,44 @@
 import { useState } from "react";
 import { SlidersHorizontal, X, ArrowUpDown, RotateCcw } from "lucide-react";
 import { Combobox } from "../../components/Combobox";
-import { STATUS_LABEL, STATUS_ORDER } from "../../lib/constants";
 
 export interface Filters {
-  category: string;
   supplier: string;
   status: string;
   search: string;
 }
 
-// لیست وضعیت‌ها از dictionary واحد (constants) — نه آرایه‌ی تکراری
-const STATUS_ITEMS = STATUS_ORDER.map((s) => STATUS_LABEL[s]);
+// گزینه‌های استاندارد و یکپارچه وضعیت هماهنگ با کارت‌های بالای صفحه
+const STATUS_OPTIONS = [
+  { id: "offered", label: "پیشنهاد باز" },
+  { id: "accepted", label: "پذیرفته‌شده" },
+  { id: "arrived", label: "تحویل‌شده" },
+];
+
+const STATUS_MAP: Record<string, string> = {
+  offered: "پیشنهاد باز",
+  accepted: "پذیرفته‌شده",
+  arrived: "تحویل‌شده",
+};
+
+const STATUS_TO_KEY: Record<string, string> = {
+  "پیشنهاد باز": "offered",
+  "پذیرفته‌شده": "accepted",
+  "تحویل‌شده": "arrived",
+  "پیشنهاد شده": "offered",
+  "پذیرفته شده": "accepted",
+  "رسیده": "arrived",
+  "باز": "offered",
+  "پذیرفته": "accepted",
+  "تحویل": "arrived",
+  offered: "offered",
+  accepted: "accepted",
+  arrived: "arrived",
+};
 
 export interface FilterToolbarProps {
   filters: Filters;
   onChange: (f: Filters) => void;
-  categories: string[];
   suppliers: { id: string; name: string }[];
   sortDir: "desc" | "asc";
   onToggleSort: () => void;
@@ -25,7 +47,6 @@ export interface FilterToolbarProps {
 export function FilterToolbar({
   filters,
   onChange,
-  categories,
   suppliers,
   sortDir,
   onToggleSort,
@@ -34,10 +55,18 @@ export function FilterToolbar({
   const set = (patch: Partial<Filters>) => onChange({ ...filters, ...patch });
 
   // شمارش تعداد فیلترهای فعال به جز سرچ
-  const activeFilterCount = [filters.category, filters.supplier, filters.status].filter(Boolean).length;
+  const activeFilterCount = [filters.supplier, filters.status].filter(Boolean).length;
 
   const clearFilters = () => {
-    onChange({ ...filters, category: "", supplier: "", status: "" });
+    onChange({ ...filters, supplier: "", status: "" });
+  };
+
+  // تبدیل کلید انگلیسی به لیبل فارسی برای نمایش داخل کامبوباکس
+  const statusDisplayValue = STATUS_MAP[filters.status] || filters.status;
+
+  const handleStatusChange = (val: string) => {
+    const key = STATUS_TO_KEY[val] || val;
+    set({ status: key });
   };
 
   return (
@@ -121,18 +150,6 @@ export function FilterToolbar({
 
             {/* دراپ‌داون‌ها داخل کشو */}
             <div className="flex flex-col gap-3.5">
-              <div className="field">
-                <label className="mb-1 block text-xs font-semibold text-muted">دسته</label>
-                <Combobox
-                  value={filters.category}
-                  onChange={(it: { id: string; label: string }) => set({ category: it.label })}
-                  items={categories}
-                  allowAdd={false}
-                  placeholder="همه دسته‌ها"
-                  onInputChange={(v) => set({ category: v })}
-                />
-              </div>
-
               <div className="field">
                 <label className="mb-1 block text-xs font-semibold text-muted">تأمین‌کننده</label>
                 <Combobox
@@ -148,12 +165,12 @@ export function FilterToolbar({
               <div className="field">
                 <label className="mb-1 block text-xs font-semibold text-muted">وضعیت</label>
                 <Combobox
-                  value={filters.status}
-                  onChange={(it: { id: string; label: string }) => set({ status: it.label })}
-                  items={STATUS_ITEMS}
+                  value={statusDisplayValue}
+                  onChange={(it: { id: string; label: string }) => handleStatusChange(it.label)}
+                  items={STATUS_OPTIONS}
                   allowAdd={false}
                   placeholder="همه وضعیت‌ها"
-                  onInputChange={(v) => set({ status: v })}
+                  onInputChange={handleStatusChange}
                 />
               </div>
             </div>
@@ -172,17 +189,6 @@ export function FilterToolbar({
 
       {/* ===== نمای دسکتاپ (md به بالا) ===== */}
       <div className="hidden md:flex flex-wrap items-end gap-3">
-        <div className="field min-w-[150px] flex-1">
-          <label>دسته</label>
-          <Combobox
-            value={filters.category}
-            onChange={(it: { id: string; label: string }) => set({ category: it.label })}
-            items={categories}
-            allowAdd={false}
-            placeholder="همه"
-            onInputChange={(v) => set({ category: v })}
-          />
-        </div>
         <div className="field min-w-[170px] flex-1">
           <label>تأمین‌کننده</label>
           <Combobox
@@ -197,12 +203,12 @@ export function FilterToolbar({
         <div className="field min-w-[150px] flex-1">
           <label>وضعیت</label>
           <Combobox
-            value={filters.status}
-            onChange={(it: { id: string; label: string }) => set({ status: it.label })}
-            items={STATUS_ITEMS}
+            value={statusDisplayValue}
+            onChange={(it: { id: string; label: string }) => handleStatusChange(it.label)}
+            items={STATUS_OPTIONS}
             allowAdd={false}
             placeholder="همه"
-            onInputChange={(v) => set({ status: v })}
+            onInputChange={handleStatusChange}
           />
         </div>
         <div className="field min-w-[200px] flex-1">

frontend/src/pages/Dashboard/QuoteCard.tsx

@@ -3,7 +3,6 @@ import { AlarmClock, ChevronDown, Pencil, TriangleAlert, Building2, Package, Cre
 import type { Quote, Store } from "../../lib/types";
 import {
   isExpired,
-  itemsSummary,
   materialById,
   materialLabel,
   projectCell,
@@ -44,7 +43,6 @@ export function QuoteCard({ store, q, expanded, onToggleExpand, onAccept, onEdit
   const pc = priceCell(total);
   const ts = termsheetSummary(store, q);
   const unitWarns = unitWarning(store, q);
-  const summary = itemsSummary(store, q);
 
   // ستون / دکمه پذیرش
   let acceptedCell: React.ReactNode;
@@ -142,12 +140,26 @@ export function QuoteCard({ store, q, expanded, onToggleExpand, onAccept, onEdit
           {sup.name.slice(0, 1)}
         </span>
         <div className="min-w-0 flex-1">
-          <Link
-            to={`/suppliers/${q.supplier_id}`}
-            className="block truncate text-xs font-bold text-ink no-underline hover:text-accent sm:text-[13.5px]"
-          >
-            {sup.name}
-          </Link>
+          <div className="flex min-w-0 items-center gap-1.5">
+            <Link
+              to={`/suppliers/${q.supplier_id}`}
+              className="min-w-0 flex-1 truncate text-xs font-bold text-ink no-underline hover:text-accent sm:text-[13.5px]"
+            >
+              {sup.name}
+            </Link>
+            {/* فاکتور رسمی / غیررسمی — از چک‌باکس «فاکتور رسمی» هنگام ثبت پیشنهاد */}
+            <span
+              className={cn(
+                "shrink-0 rounded px-1.5 py-px text-[9.5px] font-bold leading-4",
+                q.is_official
+                  ? "bg-green-bg text-green"
+                  : "bg-slate-bg text-muted",
+              )}
+              title={q.is_official ? "فاکتور رسمی" : "فاکتور غیررسمی"}
+            >
+              {q.is_official ? "رسمی" : "غیررسمی"}
+            </span>
+          </div>
           {sup.location && <div className="truncate text-[10px] text-muted sm:text-[11px]">{sup.location}</div>}
         </div>
         <div className="ms-auto flex shrink-0 items-center gap-1 sm:gap-1.5">
@@ -188,47 +200,22 @@ export function QuoteCard({ store, q, expanded, onToggleExpand, onAccept, onEdit
           </div>
         </InfoCell>
 
-        {/* ۲. اقلام — تمام‌عرض زیر پروژه با شکستن متن بدون سه‌نقطه */}
+        {/* ۲. اقلام — نمایش عمودی چندخطی */}
         <InfoCell label="اقلام" className="col-span-2 md:col-span-1">
-          {summary.count > 1 ? (
-            <div className="flex flex-col gap-1.5">
-              <span className="font-bold text-xs text-ink sm:text-sm">
-                {fmtNum(summary.count)} قلم کالا
-              </span>
-              <div className="flex flex-col gap-1.5 rounded-lg border border-line/60 bg-bg/50 p-2.5 text-[11px] leading-5 text-muted sm:text-[11.5px]">
-                {store.quotes
-                  .find((x) => x.id === q.id)
-                  ?.line_items?.filter((li) => !li.rejected)
-                  .slice(0, 3)
-                  .map((li) => {
-                    const m = materialById(store.materials, li.material_id);
-                    return (
-                      <div
-                        key={li.id}
-                        className="flex items-start justify-between gap-2 border-b border-line/30 pb-1.5 last:border-0 last:pb-0"
-                      >
-                        <span className="min-w-0 flex-1 font-medium text-ink leading-snug break-words">
-                          • {materialLabel(m)}
-                        </span>
-                        <span className="shrink-0 font-semibold tabular-nums text-ink text-[10.5px] pt-0.5">
-                          {fmtNum(li.quantity)}{" "}
-                          <span className="font-normal text-muted text-[9.5px]">{li.unit}</span>
-                        </span>
-                      </div>
-                    );
-                  })}
-                {(q.line_items?.length || 0) > 3 && (
-                  <span className="pt-0.5 text-[10px] text-muted">
-                    و {(q.line_items?.length || 0) - 3} قلم دیگر...
+          <div className="flex flex-col gap-1 text-xs font-medium leading-5 text-ink sm:text-[13px]">
+            {activeItems.length > 0 ? (
+              activeItems.map((li) => {
+                const m = materialById(store.materials, li.material_id);
+                return (
+                  <span key={li.id} className="break-words">
+                    {materialLabel(m)}
                   </span>
-                )}
-              </div>
-            </div>
-          ) : (
-            <div className="flex items-start gap-1.5 text-xs font-medium leading-5 text-ink sm:text-[13px]">
-              <span className="break-words">{summary.text}</span>
-            </div>
-          )}
+                );
+              })
+            ) : (
+              <span>—</span>
+            )}
+          </div>
 
           {unitWarns.map((w) => (
             <Link
@@ -243,32 +230,6 @@ export function QuoteCard({ store, q, expanded, onToggleExpand, onAccept, onEdit
           ))}
         </InfoCell>
 
-        <InfoCell label="پروژه">
-          <span className="inline-flex items-center gap-1 text-xs sm:text-[13px]">
-            <Building2 className="h-3.5 w-3.5 shrink-0 text-muted" />
-            <span className="truncate">
-              {(() => {
-                const activeItems = (q.line_items || []).filter((li) => !li.rejected);
-                if (q.status === "accepted" || q.status === "arrived") {
-                  // فقط پروژه‌ی هدف پذیرفته‌شده — همان منطق itemProjects در وضعیت accepted
-                  const targetProj = activeItems.find((li) => li.target_project)?.target_project;
-                  return targetProj?.name ?? projectCell(q);
-                }
-                // وضعیت offered: همه‌ی پروژه‌های کاندیدا از line_items (همان منطق itemProjects)
-                const names = new Set<string>();
-                activeItems.forEach((li) =>
-                  (li.projects || []).forEach((p) => {
-                    const name = typeof p === "string" ? p : p.name;
-                    if (name) names.add(name);
-                  })
-                );
-                if (names.size > 0) return [...names].join("، ");
-                return projectCell(q);
-              })()}
-            </span>
-          </span>
-        </InfoCell>
-
         <InfoCell label="مجموع مبلغ" className="col-span-1">
           {pc ? (
             <div>

frontend/src/pages/Dashboard/QuoteDetail.tsx

@@ -1,5 +1,5 @@
 import { useEffect, useState } from "react";
-import { Package, Scale, CreditCard, CalendarDays, Paperclip, Building2, Ban } from "lucide-react";
+import { Package, CreditCard, CalendarDays, Paperclip, Building2, Ban } from "lucide-react";
 import type { Attachment, Quote, Store } from "../../lib/types";
 import { api } from "../../lib/api";
 import {
@@ -7,12 +7,12 @@ import {
   itemTermsheetIds,
   lineItemTotal,
   materialById,
-  refConverted,
 } from "../../lib/quoteUtils";
 import { fmtDate, fmtDateTime, fmtNum } from "../../lib/formatters";
 import { groupCommas } from "../../lib/numutil";
 import { FlowDiagram, type FlowRefs } from "./FlowDiagram";
 import { itemProjects } from "../../lib/quoteUtils";
+import { FilePreviewModal, useFilePreview } from "../../components/FilePreviewModal";
 
 export interface QuoteDetailProps {
   store: Store;
@@ -25,6 +25,15 @@ export function QuoteDetail({ store, q }: QuoteDetailProps) {
   const [flowRefs] = useState<FlowRefs>(() => ({ items: new Map(), termsheets: new Map() }));
   const [bump, setBump] = useState(0);
 
+  // پیش‌نمایش پیوست‌ها: کلیک روی نام فایل، فایل را نشان می‌دهد (نه دانلود).
+  // بایت‌ها با توکن گرفته می‌شوند چون <img>/<iframe> نمی‌توانند هدر بفرستند.
+  // کلید با پیشوند نوع پیوست ساخته می‌شود تا نوعش گم نشود.
+  const preview = useFilePreview((key, name) => {
+    const [kind, id] = key.split(":") as ["invoice" | "proforma", string];
+    void name;
+    return api.files.previewUrl(q.id, kind, id);
+  });
+
   useEffect(() => {
     // بعد از نشستن layout (فونت/تصویر) خطوط دوباره رسم شوند
     const t = setTimeout(() => setBump((b) => b + 1), 350);
@@ -66,7 +75,6 @@ export function QuoteDetail({ store, q }: QuoteDetailProps) {
     const tsIds = itemTermsheetIds(li).filter((tid) => tsList.some((t) => t.id === tid));
     const total = lineItemTotal(li);
     const projs = itemProjects(q, li);
-    const conv = isRejected ? null : refConverted(store, li);
 
     // رسید جزیی → قلم به دو بخش «رسید شده» و «در راه» شکسته می‌شود (نمایشی):
     // مجموع دو بخش همیشه با تعداد/مبلغ اصلی برابر است (عدم تغییر جمع کل پیشنهاد).
@@ -130,12 +138,6 @@ export function QuoteDetail({ store, q }: QuoteDetailProps) {
             {whNames.length > 0 && <span>به انبار: {whNames.join("، ")}</span>}
           </div>
         )}
-        {conv && (
-          <div className="fb-conv">
-            <Scale className="me-1 inline h-3 w-3" /> ≈ {groupCommas(conv.qty, true)} {conv.unit}
-            {conv.perRef != null ? ` · ${groupCommas(conv.perRef, true)} تومان/${conv.unit}` : ""}
-          </div>
-        )}
       </div>
     );
   };
@@ -144,31 +146,35 @@ export function QuoteDetail({ store, q }: QuoteDetailProps) {
   attachments.proformas.forEach((pf, i) => {
     if (!pf.id) return;
     attachParts.push(
-      <button
-        key={"pf" + i}
-        type="button"
-        className="detail-link"
-        title="دانلود پیش‌فاکتور"
-        onClick={() => api.files.download(q.id, "proforma", pf.id!, pf.name)}
-      >
-        <Paperclip className="me-1 inline h-3 w-3" />
-        پیش‌فاکتور: {pf.name}
-      </button>,
+      <span key={"pf" + i} className="inline-flex items-center">
+        <button
+          type="button"
+          className="detail-link"
+          title="مشاهده پیش‌فاکتور"
+          disabled={preview.loadingId === `proforma:${pf.id}`}
+          onClick={() => void preview.open(`proforma:${pf.id}`, pf.name)}
+        >
+          <Paperclip className="me-1 inline h-3 w-3" />
+          پیش‌فاکتور: {pf.name}
+        </button>
+      </span>,
     );
   });
   attachments.invoices.forEach((inv, i) => {
     if (!inv.id) return;
     attachParts.push(
-      <button
-        key={"inv" + i}
-        type="button"
-        className="detail-link"
-        title="دانلود فاکتور"
-        onClick={() => api.files.download(q.id, "invoice", inv.id!, inv.name)}
-      >
-        <Paperclip className="me-1 inline h-3 w-3" />
-        فاکتور اصلی: {inv.name}
-      </button>,
+      <span key={"inv" + i} className="inline-flex items-center">
+        <button
+          type="button"
+          className="detail-link"
+          title="مشاهده فاکتور"
+          disabled={preview.loadingId === `invoice:${inv.id}`}
+          onClick={() => void preview.open(`invoice:${inv.id}`, inv.name)}
+        >
+          <Paperclip className="me-1 inline h-3 w-3" />
+          فاکتور اصلی: {inv.name}
+        </button>
+      </span>,
     );
   });
 
@@ -251,6 +257,9 @@ export function QuoteDetail({ store, q }: QuoteDetailProps) {
           ))}
         </div>
       )}
+      {preview.item && (
+        <FilePreviewModal url={preview.item.url} name={preview.item.name} onClose={preview.close} />
+      )}
     </div>
   );
 }

frontend/src/pages/Inventory/ArrivalsPage.tsx

@@ -8,7 +8,7 @@ import { useAuthStore } from "../../store/auth";
 import { inventorySubheader } from "./panelMenu";
 import { apiV26 } from "../../lib/api";
 import { refreshProcurementStore } from "../../hooks";
-import type { PendingArrival, Warehouse } from "../../lib/types";
+import type { PendingArrival, Warehouse, ProjectTransfer } from "../../lib/types";
 import { faNum, fmtDate } from "../../lib/formatters";
 
 // کالاهای در راه — داشبورد متصل به سیستم تدارکات (مرحله رسید)
@@ -25,24 +25,31 @@ export function ArrivalsPage() {
   const isPM = user?.role === "pm";
 
   const [items, setItems] = useState<PendingArrival[]>([]);
+  const [incomingTransfers, setIncomingTransfers] = useState<ProjectTransfer[]>([]);
   const [warehouses, setWarehouses] = useState<Warehouse[]>([]);
   const [loading, setLoading] = useState(true);
   const [saving, setSaving] = useState<string | null>(null); // quoteId
+  const [transferSaving, setTransferSaving] = useState<string | null>(null); // transferId
   const [expanded, setExpanded] = useState<Set<string>>(new Set());
   const [drafts, setDrafts] = useState<Record<string, ItemDraft>>({});
+  const [transferDrafts, setTransferDrafts] = useState<Record<string, AllocRow[]>>({});
 
   const load = useCallback(async () => {
     try {
       const activeProject = isPM ? user?.project_id || undefined : undefined;
-      const [arr, whs] = await Promise.all([
+      const [arr, whs, incoming] = await Promise.all([
         // پروژه‌ی فعال صریحاً ارسال می‌شود؛ بک‌اند تخصیص PM را بررسی می‌کند
         apiV26.pm.onTheWay(activeProject),
         apiV26.warehouses.list(activeProject),
+        apiV26.projectTransfers.onTheWay(activeProject),
       ]);
-      setItems(arr);
-      setWarehouses(whs);
+      setItems(Array.isArray(arr) ? arr : []);
+      setWarehouses(Array.isArray(whs) ? whs : []);
+      setIncomingTransfers(Array.isArray(incoming) ? incoming : []);
     } catch (err) {
       toast.error(err instanceof Error ? err.message : "خطا در دریافت کالاهای در راه");
+      setItems([]);
+      setIncomingTransfers([]);
     } finally {
       setLoading(false);
     }
@@ -212,6 +219,53 @@ export function ArrivalsPage() {
     }
   };
 
+  // ---------- transfer helpers ----------
+
+  const transferDraftOf = (t: ProjectTransfer): AllocRow[] => {
+    if (transferDrafts[t.id] && transferDrafts[t.id].length > 0) {
+      return transferDrafts[t.id];
+    }
+    const defaultWh = warehouses.find((w) => String(w.project_id) === String(t.to_project.id))?.id || warehouses[0]?.id || "";
+    return [{ key: 1, qty: String(t.quantity), whId: defaultWh }];
+  };
+
+  const setTransferAlloc = (transferId: string, rows: AllocRow[]) => {
+    setTransferDrafts((prev) => ({ ...prev, [transferId]: rows }));
+  };
+
+  const handleReceiveTransfer = async (transfer: ProjectTransfer, allocs: AllocRow[]) => {
+    const activeProject = isPM ? user?.project_id || undefined : undefined;
+    const allocSum = round4(allocs.reduce((s, a) => s + (parseFloat(a.qty) || 0), 0));
+    const targetQty = parseFloat(String(transfer.quantity));
+
+    if (allocSum !== targetQty) {
+      toast.error(`مجموع تخصیص انبارها (${faNum(allocSum)}) باید دقیقاً برابر کل بار ارسالی (${faNum(targetQty)}) باشد.`);
+      return;
+    }
+    if (allocs.some((a) => (parseFloat(a.qty) || 0) > 0 && !a.whId)) {
+      toast.error("لطفاً برای تمامی ردیف‌های دارای مقدار، انبار مقصد را انتخاب کنید.");
+      return;
+    }
+
+    setTransferSaving(transfer.id);
+    try {
+      const payloadAllocs = allocs
+        .filter((a) => (parseFloat(a.qty) || 0) > 0 && a.whId)
+        .map((a) => ({ warehouse_id: a.whId, quantity: parseFloat(a.qty) }));
+
+      await apiV26.projectTransfers.receive(transfer.id, {
+        allocations: payloadAllocs,
+      }, activeProject);
+
+      toast.success("تحویل انتقال بین کارگاهی ۱۰۰٪ تأیید شد و به انبار پروژه وارد گردید ✓");
+      await load();
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : "خطا در تأیید تحویل انتقال");
+    } finally {
+      setTransferSaving(null);
+    }
+  };
+
   if (!isAdmin && !isPM) {
     return (
       <div className="min-h-screen">
@@ -233,19 +287,171 @@ export function ArrivalsPage() {
       />
       <PageLayout className="flex flex-col gap-4">
         <div className="rounded-lg border border-blue/20 bg-blue/5 px-3 py-2 text-[12px] leading-6 text-muted">
-          🚚 این بخش به مرحله «رسید» سفارش‌های خرید متصل است: تأیید پیشنهاد و پذیرش در سیستم تدارکات انجام شده و
-          اینجا فقط رسید و تقسیم بین انبارها ثبت می‌شود. <b>رسید جزیی (قلمی و مقداری) مجاز است</b> — هر سفارش را باز
-          کنید، تعداد واقعیِ رسیده هر قلم را وارد کنید و آن را بین انبارهای پروژه تقسیم کنید؛ قلم‌هایی که مقداری برایشان
-          وارد نشود در صف «در راه» می‌مانند. مجموع تخصیص هر قلم باید دقیقاً با تعداد رسیده‌ی همان قلم برابر باشد و از
-          مانده‌ی سفارش بیشتر نشود.
+          🚚 این بخش به مرحله «رسید» سفارش‌های خرید و «انتقال بین کارگاهی» متصل است: اقلام ارسالی از سایر پروژه‌ها به صورت ۱۰۰٪ تحویل و بین انبارهای پروژه تخصیص داده می‌شوند؛ سفارش‌های خرید نیز قابلیت رسید کامل یا جزیی دارند.
         </div>
 
         {loading ? (
           <div className="py-6 text-center text-[12.5px] text-muted">در حال بارگذاری…</div>
-        ) : !orders.length ? (
+        ) : !(orders || []).length && !(incomingTransfers || []).length ? (
           <EmptyState emoji="🚚" text="کالای در راهی برای دریافت وجود ندارد." />
         ) : (
-          orders.map(([quoteId, its]) => {
+          <>
+            {/* بخش انتقال‌های بین کارگاهی در راه */}
+            {(incomingTransfers || []).length > 0 && (
+              <div className="flex flex-col gap-3">
+                <div className="flex items-center gap-2">
+                  <h3 className="text-[14px] font-bold text-foreground">🔁 انتقال‌های بین کارگاهی در راه ({faNum((incomingTransfers || []).length)})</h3>
+                  <span className="text-[11.5px] text-muted">— تحویل ۱۰۰٪ کامل مصالح ارسالی از سایر پروژه‌ها</span>
+                </div>
+
+                {(incomingTransfers || []).map((t) => {
+                  const draftAllocs = transferDraftOf(t);
+                  const allocSum = round4(draftAllocs.reduce((s, a) => s + (parseFloat(a.qty) || 0), 0));
+                  const targetQty = parseFloat(String(t.quantity));
+                  const isExactMatch = allocSum === targetQty;
+                  const hasEmptyWh = draftAllocs.some((a) => (parseFloat(a.qty) || 0) > 0 && !a.whId);
+                  const isValid = isExactMatch && !hasEmptyWh && allocSum > 0;
+                  const days = daysElapsed(t.transfer_date);
+                  const projectWhs = warehouses.filter((w) => String(w.project_id) === String(t.to_project.id));
+                  const destWhOptions = projectWhs.length > 0 ? projectWhs : warehouses;
+
+                  return (
+                    <div key={t.id} className="overflow-hidden rounded-xl border border-line bg-panel shadow-sm">
+                      {/* سربرگ انتقال */}
+                      <div className="flex flex-wrap items-center justify-between gap-2 border-b border-line bg-panel px-4 py-3">
+                        <div className="flex flex-wrap items-center gap-2">
+                          <span className="text-[14px] font-bold text-foreground">🔁 انتقال از {t.from_project?.name || "پروژه مبدأ"}</span>
+                          <Badge variant="offered">در راه</Badge>
+                          {days !== null && (
+                            <Badge variant={days >= 7 ? "offered" : "muted"}>
+                              روز گذشته: {faNum(days)} روز
+                            </Badge>
+                          )}
+                        </div>
+                        <div className="flex flex-wrap items-center gap-3 text-[11.5px] text-muted">
+                          <span>ارسال‌کننده: <b className="text-foreground">{t.transferred_by || "—"}</b></span>
+                          <span>تاریخ ارسال: <b className="text-foreground">{fmtDate(t.transfer_date)}</b></span>
+                          <span>پروژه مقصد: <b className="text-foreground">{t.to_project?.name || "—"}</b></span>
+                        </div>
+                      </div>
+
+                      <div className="px-4 py-3">
+                        <div className="flex flex-wrap items-center gap-2">
+                          <span className="text-[13px] font-bold">{t.material?.name}</span>
+                          {t.brand?.name && <Badge variant="outline">{t.brand.name}</Badge>}
+                          <Badge variant="outline">
+                            مقدار ارسالی: {faNum(t.quantity)} {t.unit?.name_fa || t.unit?.code || ""}
+                          </Badge>
+                          {t.specs && Object.keys(t.specs).length > 0 && (
+                            <span className="text-[11.5px] text-muted">
+                              مشخصات: {Object.entries(t.specs).map(([k, v]) => `${k}: ${v}`).join(" · ")}
+                            </span>
+                          )}
+                        </div>
+
+                        {t.note && (
+                          <div className="mt-1 text-[11.5px] text-muted">
+                            یادداشت ارسال: <span className="text-foreground">{t.note}</span>
+                          </div>
+                        )}
+
+                        <div className="mt-3 rounded-lg border border-line/70 bg-bg/50 p-3">
+                          <div className="text-[12px] font-semibold text-muted mb-2">
+                            تخصیص ۱۰۰٪ به انبار(های) پروژه (مجموع باید دقیقاً {faNum(t.quantity)} {t.unit?.name_fa || t.unit?.code || ""} باشد):
+                          </div>
+
+                          <div className="flex flex-col gap-2">
+                            {draftAllocs.map((a) => (
+                              <div key={a.key} className="flex flex-wrap items-center gap-2">
+                                <input
+                                  type="number"
+                                  inputMode="decimal"
+                                  className="h-8 w-28 rounded-lg border border-line bg-panel px-2 text-sm ltr"
+                                  placeholder="تعداد"
+                                  value={a.qty}
+                                  onChange={(e) => {
+                                    const next = draftAllocs.map((x) => (x.key === a.key ? { ...x, qty: e.target.value } : x));
+                                    setTransferAlloc(t.id, next);
+                                  }}
+                                />
+                                <select
+                                  className="h-8 min-w-[200px] flex-1 rounded-lg border border-line bg-panel px-2 text-xs"
+                                  value={a.whId}
+                                  onChange={(e) => {
+                                    const next = draftAllocs.map((x) => (x.key === a.key ? { ...x, whId: e.target.value } : x));
+                                    setTransferAlloc(t.id, next);
+                                  }}
+                                >
+                                  <option value="">— انتخاب انبار پروژه مقصد —</option>
+                                  {destWhOptions.map((w) => (
+                                    <option key={w.id} value={w.id}>{w.name}</option>
+                                  ))}
+                                </select>
+                                {draftAllocs.length > 1 && (
+                                  <button
+                                    type="button"
+                                    className="h-8 px-2 text-muted hover:text-red transition-colors"
+                                    onClick={() => {
+                                      const next = draftAllocs.filter((x) => x.key !== a.key);
+                                      setTransferAlloc(t.id, next);
+                                    }}
+                                    title="حذف این ردیف تخصیص"
+                                  >
+                                    ✕
+                                  </button>
+                                )}
+                              </div>
+                            ))}
+
+                            <button
+                              type="button"
+                              className="w-fit rounded-lg border border-dashed border-accent/50 px-3 py-1 text-[11.5px] text-accent mt-1 hover:bg-accent-bg/40 transition-colors"
+                              onClick={() => {
+                                const next = [...draftAllocs, { key: Date.now() + Math.random(), qty: "", whId: destWhOptions[0]?.id || "" }];
+                                setTransferAlloc(t.id, next);
+                              }}
+                            >
+                              + افزودن انبار دیگر برای تقسیم بار
+                            </button>
+                          </div>
+
+                          <div className="mt-3 flex flex-wrap items-center justify-between gap-2 border-t border-line/60 pt-2 text-[12px]">
+                            <div>
+                              {isExactMatch ? (
+                                <span className="font-semibold text-emerald-600">
+                                  ✓ تخصیص کامل ۱۰۰٪ ({faNum(allocSum)} از {faNum(targetQty)}) آماده تحویل
+                                </span>
+                              ) : (
+                                <span className="font-bold text-rose-600">
+                                  اختلاف تخصیص: مجموع تخصیص ({faNum(allocSum)}) باید دقیقاً با مقدار کل ({faNum(targetQty)}) برابر باشد.
+                                </span>
+                              )}
+                              {hasEmptyWh && (
+                                <span className="ms-2 font-bold text-rose-600">
+                                  — لطفاً انبار مقصد را انتخاب کنید
+                                </span>
+                              )}
+                            </div>
+
+                            <Button
+                              size="sm"
+                              variant="green"
+                              disabled={!isValid || transferSaving === t.id}
+                              onClick={() => void handleReceiveTransfer(t, draftAllocs)}
+                            >
+                              {transferSaving === t.id ? "در حال ثبت تحویل…" : "✓ تأیید تحویل ۱۰۰٪ و ورود به انبار"}
+                            </Button>
+                          </div>
+                        </div>
+                      </div>
+                    </div>
+                  );
+                })}
+              </div>
+            )}
+
+            {/* بخش سفارش‌های خرید در راه */}
+            {orders.map(([quoteId, its]) => {
             const first = its[0];
             const open = expanded.has(quoteId);
             const hasSubmittable = orderHasSubmittable(quoteId);
@@ -401,7 +607,8 @@ export function ArrivalsPage() {
                 )}
               </div>
             );
-          })
+          })}
+          </>
         )}
       </PageLayout>
     </div>

frontend/src/pages/Inventory/ChangeInventoryPage.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useMemo, useState } from "react";
+import { useCallback, useEffect, useMemo, useState } from "react";
 import { useSearchParams } from "react-router-dom";
 import { toast } from "sonner";
 import { Header, PageLayout } from "../../components/layout/Header";
@@ -6,21 +6,22 @@ import { Combobox } from "../../components/Combobox";
 import { MultiSelectCombobox } from "../../components/MultiSelectCombobox";
 import { useAuthStore } from "../../store/auth";
 import { inventorySubheader } from "./panelMenu";
-import { apiV26 } from "../../lib/api";
+import { api, apiV26 } from "../../lib/api";
 import { notifyDataChanged } from "../../lib/crossTab";
 import { useInventoryData, unitName, whName } from "./useInventoryData";
 import { JalaliDatePicker } from "../../components/JalaliDatePicker";
 import { uniqueUnits } from "../../lib/units";
-import type { InventoryTransaction, TransactionType } from "../../lib/types";
-import { faNum } from "../../lib/formatters";
+import type { InventoryTransaction, TransactionType, Project, ProjectTransfer } from "../../lib/types";
+import { faNum, fmtDate } from "../../lib/formatters";
 import { gregorianToJalali, MONTHS, toFa } from "../../lib/jalali";
 import { cn } from "../../lib/utils";
 
-type FormType = TransactionType | "TRANSFER";
+type FormType = TransactionType | "TRANSFER" | "PROJECT_TRANSFER";
 
 const FORM_TYPES: { t: FormType; label: string; dir: string; cls: "in" | "out" | "mv" | "cnt"; color: string; desc: string }[] = [
   { t: "PURCHASE", label: "موجودی اولیه", dir: "افزایش", cls: "in", color: "#10b981", desc: "ثبت موجودی اولیه — متریال/برند/واحد را از فهرست انتخاب کنید؛ اگر نامی در فهرست نبود، همان نام تایپ‌شده هنگام ثبت به‌صورت خودکار در کاتالوگ سراسری ساخته می‌شود. ثبت حداقل یک مشخصه فنی الزامی است." },
   { t: "WITHDRAWAL", label: "برداشت", dir: "کاهش", cls: "out", color: "#e11d48", desc: "انبار را انتخاب و نام متریال را تایپ کنید؛ همه مدل‌ها (برند و مشخصه متفاوت) نمایش داده می‌شوند. برداشت‌ها در «کنترل روزانه» امروز دیده می‌شوند." },
+  { t: "PROJECT_TRANSFER", label: "انتقال بین کارگاهی", dir: "کاهش", cls: "out", color: "#e11d48", desc: "انتقال متریال از انبار این پروژه به یک پروژه دیگر — پس از ثبت، موجودی در انبار مبدأ کسر شده و کالا به عنوان بار در راه برای پروژه مقصد ارسال می‌شود تا مدیر پروژه مقصد آن را تحویل بگیرد." },
   { t: "RETURN", label: "برگشت", dir: "افزایش", cls: "in", color: "#10b981", desc: "برگشت از مصالحی که امروز برداشت شده‌اند — نام متریال را تایپ کنید و مقدار برگشتی هر ردیف را بزنید." },
   { t: "TRANSFER", label: "انتقال", dir: "جابه‌جایی", cls: "mv", color: "#2563eb", desc: "جابه‌جایی بین انبارهای پروژه — از انبار مبدأ، مقداری از هر مدل را به انبار مقصد منتقل کنید." },
   { t: "DAMAGE", label: "ضایعات", dir: "کاهش", cls: "out", color: "#e11d48", desc: "ثبت ضایعات خرید (مثلاً لوله‌های سوراخ) — انبار و متریال را انتخاب و تعداد ضایعات هر مدل را وارد کنید." },
@@ -53,6 +54,22 @@ export function ChangeInventoryPage() {
 
   const [type, setType] = useState<FormType>("PURCHASE");
   const [whId, setWhId] = useState("");
+  const [toProjectId, setToProjectId] = useState("");
+  const [allProjects, setAllProjects] = useState<Project[]>([]);
+  const [transfers, setTransfers] = useState<ProjectTransfer[]>([]);
+  const [loadingTransfers, setLoadingTransfers] = useState(false);
+
+  // Edit modal state
+  const [editingTransfer, setEditingTransfer] = useState<ProjectTransfer | null>(null);
+  const [editQty, setEditQty] = useState("");
+  const [editToProjectId, setEditToProjectId] = useState("");
+  const [editNote, setEditNote] = useState("");
+  const [editBusy, setEditBusy] = useState(false);
+
+  // Delete modal state
+  const [deleteConfirmTransfer, setDeleteConfirmTransfer] = useState<ProjectTransfer | null>(null);
+  const [deleteBusy, setDeleteBusy] = useState(false);
+
   const [fromId, setFromId] = useState("");
   const [toId, setToId] = useState("");
   const [matTxt, setMatTxt] = useState("");
@@ -194,6 +211,82 @@ export function ChangeInventoryPage() {
     }
   };
 
+  const loadTransfers = useCallback(async () => {
+    if (!user?.project_id) return;
+    setLoadingTransfers(true);
+    try {
+      const list = await apiV26.projectTransfers.list(user.project_id, "outgoing");
+      setTransfers(Array.isArray(list) ? list : []);
+    } catch (err) {
+      console.error("Failed to load project transfers:", err);
+      setTransfers([]);
+    } finally {
+      setLoadingTransfers(false);
+    }
+  }, [user?.project_id]);
+
+  useEffect(() => {
+    api.projects
+      .list()
+      .then((res) => setAllProjects(Array.isArray(res) ? res : []))
+      .catch(() => setAllProjects([]));
+  }, []);
+
+  useEffect(() => {
+    if (type === "PROJECT_TRANSFER") {
+      void loadTransfers();
+    }
+  }, [type, loadTransfers]);
+
+  const whStock = useMemo(() => {
+    if (!whId) return [];
+    return (data.inventory || []).filter((r) => r.warehouse?.id === whId && r.quantity_number > 0);
+  }, [data.inventory, whId]);
+
+
+
+  const handleSaveEdit = async () => {
+    if (!editingTransfer) return;
+    const n = parseNum(editQty);
+    if (!(n > 0)) return toast.error("تعداد باید بزرگ‌تر از صفر باشد");
+    if (!editToProjectId) return toast.error("پروژه مقصد را انتخاب کنید");
+
+    setEditBusy(true);
+    try {
+      await apiV26.projectTransfers.update(editingTransfer.id, {
+        quantity: n,
+        to_project_id: editToProjectId,
+        note: editNote,
+      }, user?.project_id);
+      toast.success("انتقال با موفقیت ویرایش شد ✓");
+      notifyDataChanged("inventory");
+      setEditingTransfer(null);
+      await data.refresh();
+      await loadTransfers();
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : "خطا در ویرایش انتقال");
+    } finally {
+      setEditBusy(false);
+    }
+  };
+
+  const handleConfirmDelete = async () => {
+    if (!deleteConfirmTransfer) return;
+    setDeleteBusy(true);
+    try {
+      await apiV26.projectTransfers.delete(deleteConfirmTransfer.id, user?.project_id);
+      toast.success("انتقال لغو شد و موجودی به انبار مبدأ بازگردانده شد ✓");
+      notifyDataChanged("inventory");
+      setDeleteConfirmTransfer(null);
+      await data.refresh();
+      await loadTransfers();
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : "خطا در لغو انتقال");
+    } finally {
+      setDeleteBusy(false);
+    }
+  };
+
   const submitPurchase = async () => {
     const matName = matTxt.trim();
     const brandName = brandTxt.trim();
@@ -220,7 +313,7 @@ export function ChangeInventoryPage() {
       let m = matByName(matName);
       if (!m) {
         const created = await apiV26.catalog.createMaterial({ name: matName, canonical_unit_id: uid, brand_ids: bid ? [bid] : [] });
-        m = { id: created.id, name: created.name, category: null, canonical_unit: null };
+        m = { id: created.id, name: created.name, canonical_unit: null };
       }
       const op: Record<string, unknown> = {
         transaction_type: "PURCHASE", warehouse_id: whId, material_id: m.id, brand_id: bid,
@@ -234,6 +327,82 @@ export function ChangeInventoryPage() {
     }
   };
 
+  const submitProjectTransfer = async () => {
+    const matName = matTxt.trim();
+    const brandName = brandTxt.trim();
+    const unitName = unitTxt.trim();
+    const n = parseNum(qty);
+    if (!whId) return toast.error("انبار مبدأ را انتخاب کنید");
+    if (!toProjectId) return toast.error("پروژه مقصد را انتخاب کنید");
+    if (!matName) return toast.error("نام متریال را وارد کنید");
+    if (!unitName) return toast.error("نام واحد را وارد کنید");
+    if (!(n > 0)) return toast.error("تعداد باید بزرگ‌تر از صفر باشد");
+
+    setBusy(true);
+    try {
+      // Find matching inventory in the selected source warehouse
+      const invInWh = (data.inventory || []).filter(
+        (r) => r.warehouse?.id === whId && r.material.name.trim() === matName
+      );
+      const matchedInv = invInWh.find(
+        (r) => (brandName ? r.brand?.name === brandName : !r.brand)
+      ) || invInWh[0];
+
+      let uid = matchedInv?.unit?.id ?? unitIdByName(unitName);
+      if (!uid) {
+        const created = await apiV26.catalog.createUnit(unitName);
+        uid = created.id;
+      }
+
+      let bid: string | null = matchedInv?.brand?.id ?? (brandName ? brandIdByName(brandName) : null);
+      if (brandName && !bid) {
+        const created = await apiV26.catalog.createBrand(brandName);
+        bid = created.id;
+      }
+
+      let mid = matchedInv?.material.id;
+      if (!mid) {
+        let m = matByName(matName);
+        if (!m) {
+          const created = await apiV26.catalog.createMaterial({ name: matName, canonical_unit_id: uid, brand_ids: bid ? [bid] : [] });
+          mid = created.id;
+        } else {
+          mid = m.id;
+        }
+      }
+
+      const finalSpecs = matchedInv ? (matchedInv.specs || {}) : specsFromChips();
+
+      await apiV26.projectTransfers.create({
+        from_warehouse_id: whId,
+        to_project_id: toProjectId,
+        material_id: mid,
+        brand_id: bid || null,
+        unit_id: uid,
+        quantity: n,
+        specs: finalSpecs,
+        note,
+        transfer_date: toServerIso(),
+      }, user?.project_id);
+
+      toast.success("انتقال بین کارگاهی ثبت شد و از انبار مبدأ کسر گردید ✓");
+      notifyDataChanged("inventory");
+      setQty("");
+      setSpecsChips([]);
+      setNote("");
+      setMatTxt("");
+      setBrandTxt("");
+      setUnitTxt("");
+      setToProjectId("");
+      await data.refresh();
+      await loadTransfers();
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : "خطا در ثبت انتقال بین کارگاهی");
+    } finally {
+      setBusy(false);
+    }
+  };
+
   const submitList = async (t: TransactionType) => {
     const ops: Record<string, unknown>[] = rows
       .map((r, i): Record<string, unknown> | null => {
@@ -356,6 +525,7 @@ export function ChangeInventoryPage() {
   const doSubmit = () => {
     try {
       if (type === "PURCHASE") void submitPurchase();
+      else if (type === "PROJECT_TRANSFER") void submitProjectTransfer();
       else if (type === "RETURN") void submitReturn();
       else if (type === "TRANSFER") void submitTransfer();
       else if (type === "FOUND") void submitFound();
@@ -370,6 +540,9 @@ export function ChangeInventoryPage() {
     if (type === "PURCHASE") {
       return !!(whId && matTxt.trim() && brandTxt.trim() && unitTxt.trim() && parseNum(qty) > 0 && specsComplete);
     }
+    if (type === "PROJECT_TRANSFER") {
+      return !!(whId && toProjectId && matTxt.trim() && unitTxt.trim() && parseNum(qty) > 0);
+    }
     if (type === "TRANSFER") return !!(fromId && toId && matTxt.trim() && rows.some((r) => parseNum(r.qty) > 0));
     if (type === "RETURN") return !!(whId && matTxt.trim() && rows.some((r) => parseNum(r.qty) > 0));
     if (type === "FOUND") {
@@ -463,7 +636,47 @@ export function ChangeInventoryPage() {
 
         <div className="rounded-xl border border-line bg-panel p-3 sm:p-4 w-full shadow-2xs">
           {/* انتخاب انبارها (چیپ‌های لمسی به جای سلکت خام) */}
-          {!isTransfer ? (
+          {type === "PROJECT_TRANSFER" ? (
+            <div className="mb-3 grid gap-3 md:grid-cols-2">
+              <div className="flex flex-col gap-1.5">
+                <label className="text-xs font-semibold text-muted">از (انبار مبدأ این پروژه) *</label>
+                <div className="flex flex-wrap gap-1.5 mt-1">
+                  {whOpts.map((w) => (
+                    <button
+                      key={w.id}
+                      type="button"
+                      onClick={() => { setWhId(w.id); }}
+                      className={cn(
+                        "rounded-lg px-3 py-1.5 text-xs font-medium transition-colors",
+                        whId === w.id
+                          ? "bg-rose-600 text-white font-bold shadow-xs"
+                          : "border border-line bg-bg/50 text-ink hover:bg-panel"
+                      )}
+                    >
+                      {w.name}
+                    </button>
+                  ))}
+                </div>
+              </div>
+              <div className="flex flex-col gap-1.5">
+                <label className="text-xs font-semibold text-muted">به (پروژه مقصد) *</label>
+                <select
+                  className="mt-1 h-9 w-full rounded-lg border border-line bg-panel px-3 text-xs sm:text-sm font-medium"
+                  value={toProjectId}
+                  onChange={(e) => setToProjectId(e.target.value)}
+                >
+                  <option value="">— انتخاب پروژه مقصد —</option>
+                  {(allProjects || [])
+                    .filter((p) => p.id !== user?.project_id)
+                    .map((p) => (
+                      <option key={p.id} value={p.id}>
+                        {p.name}
+                      </option>
+                    ))}
+                </select>
+              </div>
+            </div>
+          ) : !isTransfer ? (
             <div className="mb-3 flex flex-col gap-3">
               <div className="flex flex-col gap-1.5">
                 <label className="text-xs font-semibold text-muted">انبار *</label>
@@ -561,9 +774,72 @@ export function ChangeInventoryPage() {
             </div>
           )}
 
-          {/* فرم خرید / موجودی اولیه */}
-          {type === "PURCHASE" && (
+          {/* فرم خرید / موجودی اولیه یا انتقال بین کارگاهی */}
+          {(type === "PURCHASE" || type === "PROJECT_TRANSFER") && (
             <div className="grid gap-3 md:grid-cols-2">
+              {/* چیپ‌های انتخاب سریع از موجودی‌های انبار مبدأ */}
+              {type === "PROJECT_TRANSFER" && whId && (
+                <div className="field md:col-span-2 rounded-xl border border-rose-500/20 bg-rose-500/5 p-3.5">
+                  <div className="flex items-center justify-between gap-2 mb-2">
+                    <span className="text-xs font-bold text-foreground flex items-center gap-1.5">
+                      <span>📦</span>
+                      <span>موجودی‌های موجود در {whName(warehouses, whId)} — برای پر کردن خودکار فرم کلیک کنید:</span>
+                    </span>
+                    <span className="text-[11px] text-muted">{faNum(whStock.length)} قلم کالا</span>
+                  </div>
+                  {whStock.length === 0 ? (
+                    <div className="text-xs text-muted py-1">هیچ کالایی با موجودی مثبت در این انبار یافت نشد.</div>
+                  ) : (
+                    <div className="flex flex-wrap gap-2">
+                      {whStock.map((r) => {
+                        const isSelected = matTxt === r.material.name && (brandTxt === (r.brand?.name || "") || (!brandTxt && !r.brand));
+                        const specsSummary = Object.entries(r.specs || {})
+                          .map(([k, v]) => (v ? `${v}` : k.replace(/^spec_/, "")))
+                          .filter(Boolean)
+                          .join(" · ");
+                        return (
+                          <button
+                            key={r.id}
+                            type="button"
+                            onClick={() => {
+                              setMatTxt(r.material.name);
+                              setBrandTxt(r.brand?.name || "");
+                              setUnitTxt(unitName(data.lookup.units, r.unit?.id) || "");
+                              const chips = Object.entries(r.specs || {})
+                                .map(([k, v]) => (v ? `${v}` : k.replace(/^spec_/, "")))
+                                .filter(Boolean);
+                              setSpecsChips(chips);
+                            }}
+                            className={cn(
+                              "flex items-center gap-2 rounded-lg border px-3 py-1.5 text-xs text-start transition-all shadow-2xs",
+                              isSelected
+                                ? "border-rose-500 bg-rose-600 text-white font-bold ring-2 ring-rose-500/30"
+                                : "border-line bg-panel hover:border-ink/40 text-ink"
+                            )}
+                          >
+                            <span className="font-bold">{r.material.name}</span>
+                            <span className={isSelected ? "text-white/80" : "text-muted font-normal"}>
+                              ({r.brand?.name || "بدون برند"})
+                            </span>
+                            {specsSummary && (
+                              <span className={isSelected ? "text-white/90" : "text-muted text-[11px]"}>
+                                [{specsSummary}]
+                              </span>
+                            )}
+                            <span className={cn(
+                              "rounded-md px-1.5 py-0.5 text-[11.5px] font-black",
+                              isSelected ? "bg-white/20 text-white" : "bg-bg text-foreground"
+                            )}>
+                              {faNum(r.quantity_number)} {unitName(data.lookup.units, r.unit?.id)}
+                            </span>
+                          </button>
+                        );
+                      })}
+                    </div>
+                  )}
+                </div>
+              )}
+
               <div className="field md:col-span-2">
                 <label className="text-xs font-semibold text-muted">متریال *</label>
                 <Combobox
@@ -582,13 +858,15 @@ export function ChangeInventoryPage() {
                 )}
               </div>
               <div className="field">
-                <label className="text-xs font-semibold text-muted">برند *</label>
+                <label className="text-xs font-semibold text-muted">
+                  برند {type === "PROJECT_TRANSFER" ? "(اختیاری)" : "*"}
+                </label>
                 <Combobox
                   value={brandTxt}
                   items={data.lookup.brands.map((b) => b.name)}
                   allowAdd
                   addSuffix="به عنوان برند جدید"
-                  placeholder="نام برند — از فهرست انتخاب یا نام جدید تایپ کنید"
+                  placeholder={type === "PROJECT_TRANSFER" ? "نام برند (اختیاری — برای اقلام بدون برند خالی بگذارید)" : "نام برند — از فهرست انتخاب یا نام جدید تایپ کنید"}
                   onInputChange={setBrandTxt}
                   onChange={(it) => setBrandTxt(it.label)}
                 />
@@ -625,11 +903,13 @@ export function ChangeInventoryPage() {
                 />
               </div>
               <div className="field md:col-span-2">
-                <label className="text-xs font-semibold text-muted">مشخصه‌های فنی *</label>
+                <label className="text-xs font-semibold text-muted">
+                  مشخصه‌های فنی {type === "PROJECT_TRANSFER" ? "(اختیاری)" : "*"}
+                </label>
                 <MultiSelectCombobox
                   values={specsChips}
                   onChange={setSpecsChips}
-                  placeholder="نام مشخصه را تایپ کنید و Enter بزنید (مثلاً سایز)"
+                  placeholder={type === "PROJECT_TRANSFER" ? "مشخصات فنی (اختیاری — مثلاً مسی، سایز و…)" : "نام مشخصه را تایپ کنید و Enter بزنید (مثلاً سایز)"}
                   className="w-full"
                 />
               </div>
@@ -637,7 +917,7 @@ export function ChangeInventoryPage() {
                 <label className="text-xs font-semibold text-muted">یادداشت</label>
                 <textarea
                   className="w-full rounded-lg border border-line bg-panel px-3 py-2 text-xs sm:text-sm"
-                  placeholder="شماره فاکتور، تأمین‌کننده، توضیحات…"
+                  placeholder={type === "PROJECT_TRANSFER" ? "توضیحات بار ارسالی، شماره بارنامه، راننده…" : "شماره فاکتور، تأمین‌کننده، توضیحات…"}
                   value={note}
                   onChange={(e) => setNote(e.target.value)}
                 />
@@ -702,11 +982,234 @@ export function ChangeInventoryPage() {
               className="w-full sm:w-auto rounded-lg px-5 py-2.5 text-xs sm:text-[13px] font-bold text-white disabled:opacity-40 shadow-xs transition-transform active:scale-95"
               style={{ background: meta.color }}
             >
-              ✓ {busy ? "در حال ثبت…" : meta.label === "انتقال" ? "ثبت انتقال" : meta.label === "برگشت" ? "ثبت برگشت" : meta.label === "پیدا شده" ? "ثبت پیدا شدن" : `ثبت ${meta.label}`}
+              ✓ {busy ? "در حال ثبت…" : meta.label === "انتقال" ? "ثبت انتقال" : meta.label === "انتقال بین کارگاهی" ? "ثبت انتقال بین کارگاهی و کسر از انبار" : meta.label === "برگشت" ? "ثبت برگشت" : meta.label === "پیدا شده" ? "ثبت پیدا شدن" : `ثبت ${meta.label}`}
             </button>
           </div>
         </div>
 
+        {/* بخش سوابق انتقال‌های بین کارگاهی این پروژه */}
+        {type === "PROJECT_TRANSFER" && (
+          <div className="rounded-xl border border-line bg-panel p-3 sm:p-4 w-full shadow-2xs">
+            <div className="flex flex-wrap items-center justify-between gap-2 border-b border-line pb-3">
+              <div>
+                <h3 className="text-sm font-bold text-foreground">📋 سوابق انتقال‌های بین کارگاهی این پروژه</h3>
+                <p className="mt-0.5 text-[11.5px] text-muted">
+                  مصالح ارسالی به سایر پروژه‌ها؛ تا زمان تأیید تحویل در مقصد می‌توانید آن‌ها را ویرایش یا لغو کنید.
+                </p>
+              </div>
+              <button
+                type="button"
+                onClick={() => void loadTransfers()}
+                className="rounded-lg border border-line px-3 py-1.5 text-xs font-medium hover:bg-bg transition-colors"
+              >
+                🔄 به‌روزرسانی لیست
+              </button>
+            </div>
+
+            {loadingTransfers ? (
+              <div className="py-8 text-center text-xs text-muted">در حال بارگذاری سوابق…</div>
+            ) : !(transfers || []).length ? (
+              <div className="py-8 text-center text-xs text-muted">هیچ انتقال بین کارگاهی از این پروژه ثبت نشده است.</div>
+            ) : (
+              <div className="mt-3 overflow-x-auto">
+                <table className="w-full text-right text-xs min-w-[650px]">
+                  <thead>
+                    <tr className="border-b border-line text-muted">
+                      <th className="py-2.5 pe-3">تاریخ انتقال</th>
+                      <th className="py-2.5 pe-3">متریال / برند</th>
+                      <th className="py-2.5 pe-3">مشخصات فنی</th>
+                      <th className="py-2.5 pe-3">مقدار</th>
+                      <th className="py-2.5 pe-3">مبدأ → مقصد</th>
+                      <th className="py-2.5 pe-3">وضعیت</th>
+                      <th className="py-2.5 text-center">عملیات</th>
+                    </tr>
+                  </thead>
+                  <tbody className="divide-y divide-line/50">
+                    {(transfers || []).map((t) => {
+                      const isInTransit = t.status === "in_transit";
+                      return (
+                        <tr key={t.id} className="hover:bg-bg/40">
+                          <td className="py-3 pe-3 text-muted">{fmtDate(t.transfer_date)}</td>
+                          <td className="py-3 pe-3 font-semibold">
+                            <div>{t.material?.name}</div>
+                            <div className="text-[11px] text-muted font-normal">{t.brand?.name || "بدون برند"}</div>
+                          </td>
+                          <td className="py-3 pe-3 text-muted text-[11.5px]">
+                            {t.specs && Object.keys(t.specs).length > 0
+                              ? Object.entries(t.specs).map(([k, v]) => `${k}: ${v}`).join(" · ")
+                              : "—"}
+                          </td>
+                          <td className="py-3 pe-3 font-bold text-foreground">
+                            {faNum(t.quantity)} {t.unit?.name_fa || t.unit?.code}
+                          </td>
+                          <td className="py-3 pe-3">
+                            <div className="text-[11px] text-muted">از: {t.from_warehouse?.name}</div>
+                            <div className="text-[12px] font-medium text-foreground">به: {t.to_project?.name}</div>
+                          </td>
+                          <td className="py-3 pe-3">
+                            {isInTransit ? (
+                              <span className="inline-flex items-center gap-1 rounded-full bg-amber-500/10 px-2.5 py-0.5 text-[11px] font-bold text-amber-700 border border-amber-500/20">
+                                🟡 در انتظار تأیید مقصد
+                              </span>
+                            ) : (
+                              <div className="flex flex-col gap-0.5">
+                                <span className="inline-flex items-center gap-1 rounded-full bg-emerald-500/10 px-2.5 py-0.5 text-[11px] font-bold text-emerald-700 border border-emerald-500/20">
+                                  🟢 تحویل‌شده در مقصد
+                                </span>
+                                {t.to_warehouse?.name && (
+                                  <span className="text-[10.5px] text-muted">انبار: {t.to_warehouse.name}</span>
+                                )}
+                              </div>
+                            )}
+                          </td>
+                          <td className="py-3 text-center">
+                            {isInTransit ? (
+                              <div className="flex items-center justify-center gap-1.5">
+                                <button
+                                  type="button"
+                                  onClick={() => {
+                                    setEditingTransfer(t);
+                                    setEditQty(String(t.quantity));
+                                    setEditToProjectId(t.to_project?.id || "");
+                                    setEditNote(t.note || "");
+                                  }}
+                                  className="rounded-lg border border-line px-2.5 py-1 text-[11.5px] font-medium hover:bg-bg transition-colors"
+                                  title="ویرایش انتقال"
+                                >
+                                  ✏️ ویرایش
+                                </button>
+                                <button
+                                  type="button"
+                                  onClick={() => setDeleteConfirmTransfer(t)}
+                                  className="rounded-lg border border-rose-200 bg-rose-50 px-2.5 py-1 text-[11.5px] font-medium text-rose-700 hover:bg-rose-100 transition-colors"
+                                  title="لغو انتقال"
+                                >
+                                  ✕ لغو
+                                </button>
+                              </div>
+                            ) : (
+                              <span className="inline-flex items-center gap-1 text-[11px] text-muted font-medium">
+                                🔒 قفل
+                              </span>
+                            )}
+                          </td>
+                        </tr>
+                      );
+                    })}
+                  </tbody>
+                </table>
+              </div>
+            )}
+          </div>
+        )}
+
+        {/* مودال ویرایش انتقال */}
+        {editingTransfer && (
+          <div className="fixed inset-0 z-50 flex items-center justify-center bg-ink/40 p-4" onClick={() => !editBusy && setEditingTransfer(null)}>
+            <div className="w-full max-w-md rounded-xl border border-line bg-panel p-4 sm:p-5 shadow-xl" onClick={(e) => e.stopPropagation()}>
+              <h3 className="mb-2 text-[14px] font-bold">✏️ ویرایش انتقال بین کارگاهی</h3>
+              <p className="mb-3 text-[11.5px] text-muted">
+                تغییر تعداد در انبار مبدأ تعدیل می‌گردد. پس از تحویل در مقصد، ویرایش غیرفعال خواهد شد.
+              </p>
+
+              <div className="flex flex-col gap-3">
+                <div className="rounded-lg border border-line bg-bg/50 p-2.5 text-xs">
+                  <div>متریال: <b>{editingTransfer.material?.name}</b></div>
+                  <div className="text-muted mt-0.5">انبار مبدأ: {editingTransfer.from_warehouse?.name}</div>
+                </div>
+
+                <div className="field">
+                  <label className="text-xs font-semibold text-muted">پروژه مقصد *</label>
+                  <select
+                    className="h-9 w-full rounded-lg border border-line bg-panel px-3 text-xs sm:text-sm font-medium"
+                    value={editToProjectId}
+                    onChange={(e) => setEditToProjectId(e.target.value)}
+                  >
+                    {(allProjects || [])
+                      .filter((p) => p.id !== user?.project_id)
+                      .map((p) => (
+                        <option key={p.id} value={p.id}>
+                          {p.name}
+                        </option>
+                      ))}
+                  </select>
+                </div>
+
+                <div className="field">
+                  <label className="text-xs font-semibold text-muted">
+                    تعداد ({editingTransfer.unit?.name_fa || editingTransfer.unit?.code}) *
+                  </label>
+                  <input
+                    inputMode="decimal"
+                    className="h-9 w-full rounded-lg border border-line bg-panel px-3 text-xs sm:text-sm ltr"
+                    value={editQty}
+                    onChange={(e) => setEditQty(e.target.value)}
+                  />
+                </div>
+
+                <div className="field">
+                  <label className="text-xs font-semibold text-muted">یادداشت</label>
+                  <textarea
+                    className="w-full rounded-lg border border-line bg-panel px-3 py-2 text-xs sm:text-sm"
+                    value={editNote}
+                    onChange={(e) => setEditNote(e.target.value)}
+                  />
+                </div>
+              </div>
+
+              <div className="mt-4 flex items-center justify-end gap-2 border-t border-line pt-3">
+                <button
+                  type="button"
+                  className="rounded-lg border border-line px-4 py-2 text-[12.5px]"
+                  onClick={() => setEditingTransfer(null)}
+                  disabled={editBusy}
+                >
+                  انصراف
+                </button>
+                <button
+                  type="button"
+                  className="rounded-lg bg-blue-600 px-4 py-2 text-[12.5px] font-bold text-white hover:bg-blue-700 disabled:opacity-50"
+                  onClick={() => void handleSaveEdit()}
+                  disabled={editBusy}
+                >
+                  {editBusy ? "در حال ذخیره…" : "ذخیره تغییرات"}
+                </button>
+              </div>
+            </div>
+          </div>
+        )}
+
+        {/* دیالوگ تأیید لغو انتقال */}
+        {deleteConfirmTransfer && (
+          <div className="fixed inset-0 z-50 flex items-center justify-center bg-ink/40 p-4" onClick={() => !deleteBusy && setDeleteConfirmTransfer(null)}>
+            <div className="w-full max-w-sm rounded-xl border border-line bg-panel p-4 sm:p-5 shadow-xl" onClick={(e) => e.stopPropagation()}>
+              <h3 className="mb-2 text-[14px] font-bold text-rose-600">⚠️ لغو انتقال بین کارگاهی</h3>
+              <p className="mb-3 text-[12px] leading-6 text-foreground">
+                آیا از لغو این انتقال اطمینان دارید؟ با لغو انتقال، مقدار <b>{faNum(deleteConfirmTransfer.quantity)} {deleteConfirmTransfer.unit?.name_fa || deleteConfirmTransfer.unit?.code}</b> از متریال <b>{deleteConfirmTransfer.material?.name}</b> فوراً به انبار مبدأ ({deleteConfirmTransfer.from_warehouse?.name}) بازگردانده خواهد شد.
+              </p>
+
+              <div className="mt-4 flex items-center justify-end gap-2 border-t border-line pt-3">
+                <button
+                  type="button"
+                  className="rounded-lg border border-line px-4 py-2 text-[12.5px]"
+                  onClick={() => setDeleteConfirmTransfer(null)}
+                  disabled={deleteBusy}
+                >
+                  انصراف
+                </button>
+                <button
+                  type="button"
+                  className="rounded-lg bg-rose-600 px-4 py-2 text-[12.5px] font-bold text-white hover:bg-rose-700 disabled:opacity-50"
+                  onClick={() => void handleConfirmDelete()}
+                  disabled={deleteBusy}
+                >
+                  {deleteBusy ? "در حال لغو…" : "بله، لغو و بازگشت موجودی"}
+                </button>
+              </div>
+            </div>
+          </div>
+        )}
+
         {/* مودال تأیید شمارش موجودی */}
         {countConfirm && (
           <div className="fixed inset-0 z-50 flex items-center justify-center bg-ink/40 p-4" onClick={() => !countBusy && setCountConfirm(null)}>
@@ -771,7 +1274,11 @@ export function ChangeInventoryPage() {
         )}
 
         <div className="text-[11px] text-muted">
-          {isTransfer ? "انتقال فقط بین انبارهای یک پروژه ممکن است. با ثبت، خروجی از مبدأ و ورودی به مقصد هم‌زمان ثبت می‌شود." : `تاریخ انتخابی: ${jalDateLabel(new Date(dateInput))} — با «${jalDateLabel(new Date())}» برابر است.`}
+          {type === "PROJECT_TRANSFER"
+            ? "انتقال بین کارگاهی: موجودی فوراً از انبار مبدأ کسر شده و پس از تأیید تحویل توسط مدیر پروژه مقصد، وارد انبار مقصد می‌شود."
+            : isTransfer
+              ? "انتقال فقط بین انبارهای یک پروژه ممکن است. با ثبت، خروجی از مبدأ و ورودی به مقصد هم‌زمان ثبت می‌شود."
+              : `تاریخ انتخابی: ${jalDateLabel(new Date(dateInput))} — با «${jalDateLabel(new Date())}» برابر است.`}
         </div>
       </PageLayout>
     </div>

frontend/src/pages/Inventory/InventoryPage.tsx

@@ -7,7 +7,7 @@ import { useAuthStore } from "../../store/auth";
 import { AppSwitcherMenu } from "../../components/AppSwitcherMenu";
 import { inventorySubheader } from "./panelMenu";
 import { InventoryTopNav } from "./InventoryTopNav";
-import { useInventoryData, brandName, catName, materialName, unitName, whName } from "./useInventoryData";
+import { useInventoryData, brandName, materialName, unitName, whName } from "./useInventoryData";
 import type { InventoryRow, InventoryTransaction, TransactionType } from "../../lib/types";
 import { faNum } from "../../lib/formatters";
 import { isoToJalaliStr } from "../../lib/jalali";
@@ -55,8 +55,7 @@ export function InventoryPage() {
   const isPM = user?.role === "pm";
   const [params] = useSearchParams();
 
-  const [filters, setFilters] = useState<{ category: string; warehouse: string; material: string; project: string }>({
-    category: "",
+  const [filters, setFilters] = useState<{ warehouse: string; material: string; project: string }>({
     warehouse: params.get("warehouse") || "",
     material: "",
     project: "",
@@ -81,7 +80,6 @@ export function InventoryPage() {
     inventory.forEach((r) => {
       const whId = r.warehouse?.id;
       if (!whId || !visibleIds.has(whId)) return;
-      if (filters.category && r.material.category?.id !== filters.category) return;
       if (filters.warehouse && whId !== filters.warehouse) return;
       if (filters.material && !r.material.name.includes(filters.material.trim())) return;
       const gk = `${whId}|${r.material.id}|${specsHash(r.specs)}`;
@@ -132,7 +130,7 @@ export function InventoryPage() {
       .slice()
       .sort((a, b) => new Date(a.transaction_date).getTime() - new Date(b.transaction_date).getTime());
 
-  const hasFilter = !!(filters.category || filters.warehouse || (isAdmin && filters.project));
+  const hasFilter = !!(filters.warehouse || (isAdmin && filters.project));
 
   if (loading) return <div className="min-h-screen" />;
   if (!user || (!isAdmin && !isPM)) {
@@ -248,40 +246,6 @@ export function InventoryPage() {
           {/* فیلترهای پیشرفته — برچسب‌های لمسی بدون سلکت و بدون بیرون‌زدگی */}
           {showMobileFilters && (
             <div className="mt-2.5 border-t border-line/60 pt-2.5 flex flex-col gap-2.5">
-              {/* دسته‌بندی‌ها */}
-              <div>
-                <div className="mb-1.5 text-[11px] font-bold text-muted">دسته‌بندی متریال:</div>
-                <div className="flex flex-wrap gap-1.5">
-                  <button
-                    type="button"
-                    onClick={() => setFilters((f) => ({ ...f, category: "" }))}
-                    className={cn(
-                      "rounded-lg px-2.5 py-1 text-[11.5px] transition-colors",
-                      !filters.category
-                        ? "bg-accent text-white font-bold"
-                        : "border border-line bg-bg/40 text-ink hover:bg-panel"
-                    )}
-                  >
-                    همه دسته‌بندی‌ها
-                  </button>
-                  {lookup.categories.map((c) => (
-                    <button
-                      key={c.id}
-                      type="button"
-                      onClick={() => setFilters((f) => ({ ...f, category: f.category === c.id ? "" : c.id }))}
-                      className={cn(
-                        "rounded-lg px-2.5 py-1 text-[11.5px] transition-colors",
-                        filters.category === c.id
-                          ? "bg-accent text-white font-bold"
-                          : "border border-line bg-bg/40 text-ink hover:bg-panel"
-                      )}
-                    >
-                      {c.name}
-                    </button>
-                  ))}
-                </div>
-              </div>
-
               {/* پروژه‌ها (مخصوص ادمین) */}
               {isAdmin && lookup.projects.length > 0 && (
                 <div>
@@ -324,7 +288,7 @@ export function InventoryPage() {
                   <button
                     type="button"
                     className="text-xs text-red font-medium hover:underline inline-flex items-center gap-1"
-                    onClick={() => setFilters({ category: "", warehouse: "", material: "", project: "" })}
+                    onClick={() => setFilters({ warehouse: "", material: "", project: "" })}
                   >
                     <X className="h-3 w-3" />
                     پاک کردن فیلترها
@@ -347,7 +311,6 @@ export function InventoryPage() {
           ) : (
             groups.map((g) => {
               const isExp = expandedKey === g.key;
-              const matCat = lookup.materials.find((m) => m.id === g.matId)?.category;
               return (
                 <InventoryMobileCard
                   key={g.key}
@@ -355,7 +318,6 @@ export function InventoryPage() {
                   isExp={isExp}
                   isAdmin={isAdmin}
                   matName={materialName(lookup.materials, g.matId)}
-                  matCatName={matCat ? catName(lookup.categories, matCat.id) : "—"}
                   wh={whName(warehouses, g.whId)}
                   projName={lookup.projects.find((p) => p.id === warehouses.find((w) => w.id === g.whId)?.project_id)?.name || ""}
                   unit={unitName(lookup.units, g.unitId)}
@@ -410,7 +372,6 @@ export function InventoryPage() {
               <tbody>
                 {groups.map((g) => {
                   const isExp = expandedKey === g.key;
-                  const matCat = lookup.materials.find((m) => m.id === g.matId)?.category;
                   return (
                     <GroupRow
                       key={g.key}
@@ -418,7 +379,6 @@ export function InventoryPage() {
                       isExp={isExp}
                       isAdmin={isAdmin}
                       matName={materialName(lookup.materials, g.matId)}
-                      matCatName={matCat ? catName(lookup.categories, matCat.id) : "—"}
                       wh={whName(warehouses, g.whId)}
                       projName={lookup.projects.find((p) => p.id === warehouses.find((w) => w.id === g.whId)?.project_id)?.name || ""}
                       unit={unitName(lookup.units, g.unitId)}
@@ -475,7 +435,6 @@ function InventoryMobileCard({
   isExp,
   isAdmin,
   matName,
-  matCatName,
   wh,
   projName,
   unit,
@@ -486,7 +445,6 @@ function InventoryMobileCard({
   isExp: boolean;
   isAdmin: boolean;
   matName: string;
-  matCatName: string;
   wh: string;
   projName: string;
   unit: string;
@@ -508,11 +466,6 @@ function InventoryMobileCard({
             <h3 className="text-[13.5px] font-bold leading-snug text-ink break-words">
               {matName}
             </h3>
-            {matCatName !== "—" && (
-              <span className="mt-0.5 inline-block text-[11px] text-muted">
-                {matCatName}
-              </span>
-            )}
           </div>
           <div
             className={cn(
@@ -574,12 +527,11 @@ function InventoryMobileCard({
   );
 }
 
-function GroupRow({ g, isExp, isAdmin, matName, matCatName, wh, projName, unit, onToggle, timeline }: {
+function GroupRow({ g, isExp, isAdmin, matName, wh, projName, unit, onToggle, timeline }: {
   g: Group;
   isExp: boolean;
   isAdmin: boolean;
   matName: string;
-  matCatName: string;
   wh: string;
   projName: string;
   unit: string;
@@ -591,7 +543,6 @@ function GroupRow({ g, isExp, isAdmin, matName, matCatName, wh, projName, unit,
       <tr className={`border-b border-line/60 cursor-pointer transition-colors ${isExp ? "bg-accent/5" : "hover:bg-accent/5"}`} onClick={onToggle}>
         <td className="py-2.5 text-center text-muted">{isExp ? "▾" : "▸"}</td>
         <td className="py-2.5 pe-3 font-bold text-ink">{matName}</td>
-        <td className="py-2.5 pe-3 text-muted">{matCatName}</td>
         <td className="py-2.5 pe-3">
           <div>{wh}</div>
           {isAdmin && <span className="block text-[10.5px] text-muted">{projName}</span>}

frontend/src/pages/Inventory/OrganizationPage.tsx

@@ -148,16 +148,8 @@ export function OrganizationPage() {
     }
   };
 
-  const moveWarehouse = async (id: string, projectId: string) => {
-    try {
-      await apiV26.warehouses.update(id, { project_id: projectId });
-      toast.success("انبار منتقل شد ✓");
-      await data.refresh();
-    } catch (err) {
-      toast.error(err instanceof Error ? err.message : "خطا در انتقال انبار");
-    }
-  };
-
+  // انبار برای همیشه به پروژه‌ی والدش تعلق دارد — انتقال به پروژه‌ی دیگر وجود ندارد؛
+  // انبار فقط با حذف و ساخت دوباره زیر پروژه‌ی موردنظر جابه‌جا می‌شود.
   const removeWarehouse = async (id: string) => {
     if (!confirm("انبار حذف شود؟ (انبارهای دارای سابقه تراکنش قابل حذف نیستند)")) return;
     try {
@@ -329,16 +321,6 @@ export function OrganizationPage() {
                           >
                             📊 داشبورد
                           </button>
-                          <select
-                            className="h-7 rounded-lg border border-line bg-panel px-2 text-[11px]"
-                            value={w.project_id}
-                            onChange={(e) => void moveWarehouse(w.id, e.target.value)}
-                            title="انتقال به پروژه دیگر"
-                          >
-                            {data.lookup.projects.map((p2) => (
-                              <option key={p2.id} value={p2.id}>{p2.name}</option>
-                            ))}
-                          </select>
                           <button className="text-muted hover:text-red" onClick={() => void removeWarehouse(w.id)} title="حذف انبار">✕</button>
                         </div>
                       </div>

frontend/src/pages/Inventory/useInventoryData.ts

@@ -9,10 +9,9 @@ import { useDataChanged } from "../../lib/crossTab";
 import type { InventoryRow, InventoryTransaction, Warehouse } from "../../lib/types";
 
 export interface LookupData {
-  categories: { id: string; slug: string; name: string }[];
   units: { id: number; code: string; name_fa: string | null }[];
   brands: { id: string; name: string }[];
-  materials: { id: string; name: string; category: { id: string; name: string } | null; canonical_unit: { id: number; code: string; name_fa: string | null } | null }[];
+  materials: { id: string; name: string; canonical_unit: { id: number; code: string; name_fa: string | null } | null }[];
   projects: { id: string; name: string; pm_user_id: string | null; pm_name?: string | null }[];
 }
 
@@ -34,14 +33,13 @@ export function useInventoryData(): InventoryData {
   const [inventory, setInventory] = useState<InventoryRow[]>([]);
   const [transactions, setTransactions] = useState<InventoryTransaction[]>([]);
   const [lookup, setLookup] = useState<LookupData>({
-    categories: [], units: [], brands: [], materials: [], projects: [],
+    units: [], brands: [], materials: [], projects: [],
   });
   const [loading, setLoading] = useState(true);
 
   const load = useCallback(async () => {
     try {
-      const [cats, units, brands, mats, projs, whs, inv, txs] = await Promise.all([
-        apiV26.lookup.categories(),
+      const [units, brands, mats, projs, whs, inv, txs] = await Promise.all([
         apiV26.lookup.units(),
         apiV26.lookup.brands(),
         apiV26.lookup.materials(),
@@ -50,7 +48,7 @@ export function useInventoryData(): InventoryData {
         apiV26.inventory.list({ project_id: projectId }),
         apiV26.inventory.transactions({ project_id: projectId }),
       ]);
-      setLookup({ categories: cats, units, brands, materials: mats, projects: projs });
+      setLookup({ units, brands, materials: mats, projects: projs });
       setWarehouses(whs);
       setInventory(inv);
       setTransactions(txs);
@@ -108,11 +106,6 @@ export function materialName(materials: LookupData["materials"], id: string): st
   return m ? m.name : "—";
 }
 
-export function catName(categories: LookupData["categories"], id: string | null | undefined): string {
-  const c = categories.find((x) => x.id === id);
-  return c ? c.name : "—";
-}
-
 export function projName(projects: LookupData["projects"], id: string | null | undefined): string {
   const p = projects.find((x) => x.id === id);
   return p ? p.name : "—";

frontend/src/pages/Projects/ProjectsPage.tsx

@@ -16,11 +16,9 @@ import {
 import { normalize } from "../../lib/normalize";
 import { useAppStore } from "../../store";
 import {
-  activeItems,
   lineItemTotal,
   materialById,
   materialLabel,
-  refConverted,
   supplierById,
 } from "../../lib/quoteUtils";
 import { faNum, fmtDate } from "../../lib/formatters";
@@ -29,25 +27,45 @@ import { EmptyState } from "../../components/EmptyState";
 import { Button } from "../../components/ui/button";
 
 function projectQuotes(quotes: Quote[], name: string): Quote[] {
-  return quotes.filter((q) => (q.projects || []).includes(name) || q.project === name);
+  return quotes.filter(
+    (q) =>
+      (q.projects || []).includes(name) ||
+      q.project === name ||
+      (q.line_items || []).some(
+        (li) =>
+          li.target_project?.name === name ||
+          (li.projects || []).some((p) => (typeof p === "string" ? p : p.name) === name),
+      ),
+  );
 }
 
-// اقلام مربوط به این پروژه در یک quote
+// آیا این پیشنهاد برای «این» پروژه پذیرفته شده است؟
+// ملاک، پروژه‌ی هدفِ تصمیم خریدِ اقلام است (item_decisions.project_id) — نه
+// وضعیت سراسری پیشنهاد؛ پیشنهادی که فقط برای پروژه‌ی دیگری پذیرفته شده،
+// برای این پروژه همچنان «پیشنهاد شده» است.
+function acceptedForProject(q: Quote, name: string): boolean {
+  return (q.line_items || []).some((li) => !li.rejected && li.target_project?.name === name);
+}
+
+// آیا اصلاً برای این پیشنهاد پروژه‌ی هدفی ثبت شده؟ (پیشنهادهای قدیمیِ
+// پیش از era تصمیم‌پروژه، طبق وضعیت سراسری دسته‌بندی می‌شوند)
+function hasTargets(q: Quote): boolean {
+  return (q.line_items || []).some((li) => !!li.target_project);
+}
+
+// اقلام مربوط به این پروژه در یک quote:
+// اولویت با اقلامِ پذیرفته‌شده برای همین پروژه (تصمیم خرید)؛ سپس کاندیداهای
+// همین پروژه؛ و اگر هیچ اتصال قلم‌به‌قلمی نبود، همه‌ی اقلام فعال.
 function itemsForProject(q: Quote, name: string): Quote["line_items"] {
   const items = (q.line_items || []).filter((li) => !li.rejected);
+  const targeted = items.filter((li) => li.target_project?.name === name);
+  if (targeted.length) return targeted;
   if (items.some((li) => li.projects && li.projects.length)) {
     return items.filter((li) => (li.projects || []).some((p) => p.name === name));
   }
   return items;
 }
 
-function qTotal(q: Quote): number {
-  return activeItems(q).reduce((sum, li) => {
-    const t = lineItemTotal(li);
-    return sum + (t || 0);
-  }, 0);
-}
-
 function daysSince(iso: string | null): number | null {
   if (!iso) return null;
   const d = new Date(iso);
@@ -62,11 +80,11 @@ export function ProjectsPage() {
   const quotes = useQuotes();
   const suppliers = useSuppliers();
   const materials = useMaterials();
-  const { categoryUnits, unitConversions, standardConversions } = useUnits();
+  const { standardConversions } = useUnits();
   const addProject = useAddProject();
   const topics = useAppStore((s) => s.topics);
 
-  const store: Store = { quotes, suppliers, materials, projects, categoryUnits, unitConversions, standardConversions, topics };
+  const store: Store = { quotes, suppliers, materials, projects, standardConversions, topics };
 
   const [openProject, setOpenProject] = useState<string | null>(null);
   const [newName, setNewName] = useState("");
@@ -147,10 +165,11 @@ export function ProjectsPage() {
 // ---------- پنل جزئیات یک پروژه ----------
 function renderProjectDetail(store: Store, name: string): React.ReactElement {
   const quotes = projectQuotes(store.quotes, name);
-  const sumBy = (st: Quote["status"]) =>
-    quotes
-      .filter((q) => q.status === st)
-      .reduce((s, q) => s + qTotal(q), 0);
+
+  // جمع مبلغ هر ستون فقط روی اقلامِ همین پروژه
+  const itemsTotal = (q: Quote) =>
+    itemsForProject(q, name).reduce((s, li) => s + (lineItemTotal(li) || 0), 0);
+  const sumBy = (list: Quote[]) => list.reduce((s, q) => s + itemsTotal(q), 0);
 
   const matName = (mid: string) => {
     const m = materialById(store.materials, mid);
@@ -169,26 +188,27 @@ function renderProjectDetail(store: Store, name: string): React.ReactElement {
 
   const itemLine = (li: Quote["line_items"][number]) => {
     const total = lineItemTotal(li);
-    const conv = refConverted(store, li);
     return (
       <div key={li.id}>
         {matName(li.material_id)} — {faNum(li.quantity)} {li.unit} × {faNum(li.unit_price || 0)} ={" "}
         <b>{faNum(total || 0)} تومان</b>
-        {conv && (
-          <span className="pj-conv">
-            {" "}
-            — <span className="pj-conv">≈ {faNum(conv.qty)} {conv.unit}({faNum(conv.perRef ?? 0)} تومان/{conv.unit})</span>
-          </span>
-        )}
       </div>
     );
   };
 
+  // دسته‌بندی ایزوله per-project:
+  // - پذیرفته/رسیده فقط وقتی حداقل یک قلمِ غیرردشده برای «این» پروژه پذیرفته شده باشد؛
+  // - پیشنهادی که صرفاً کاندیداست (یا فقط برای پروژه‌ی دیگری پذیرفته شده) → پیشنهاد شده.
+  // - پیشنهادهای قدیمیِ بدون پروژه‌ی هدف، طبق وضعیت سراسری می‌مانند.
   const offered = quotes
-    .filter((q) => q.status === "offered")
+    .filter(
+      (q) =>
+        q.status === "offered" ||
+        ((q.status === "accepted" || q.status === "arrived") && hasTargets(q) && !acceptedForProject(q, name)),
+    )
     .sort((a, b) => new Date(a.expiry_date || 0).getTime() - new Date(b.expiry_date || 0).getTime());
-  const accepted = quotes.filter((q) => q.status === "accepted");
-  const arrived = quotes.filter((q) => q.status === "arrived");
+  const accepted = quotes.filter((q) => q.status === "accepted" && acceptedForProject(q, name));
+  const arrived = quotes.filter((q) => q.status === "arrived" && acceptedForProject(q, name));
 
   const offeredRow = (q: Quote) => {
     const days = q.expiry_date ? Math.ceil((new Date(q.expiry_date).getTime() - Date.now()) / 86400000) : null;
@@ -199,7 +219,7 @@ function renderProjectDetail(store: Store, name: string): React.ReactElement {
         </div>
         <div className="pj-meta">{itemsForProject(q, name).map(itemLine)}</div>
         <div className="pj-side">
-          جمع: <b>{faNum(qTotal(q))} تومان</b>
+          جمع: <b>{faNum(itemsTotal(q))} تومان</b>
         </div>
         <div className="pj-side">
           اعتبار تا {fmtDate(q.expiry_date)}<br />
@@ -240,7 +260,7 @@ function renderProjectDetail(store: Store, name: string): React.ReactElement {
       </div>
       <div className="pj-meta">{itemsForProject(q, name).map(itemLine)}</div>
       <div className="pj-side">
-        هزینه: <b>{faNum(qTotal(q))} تومان</b>
+        هزینه: <b>{faNum(itemsTotal(q))} تومان</b>
       </div>
       <div className="pj-side">رسید: {fmtDate(q.arrived_date)}</div>
     </div>
@@ -255,13 +275,13 @@ function renderProjectDetail(store: Store, name: string): React.ReactElement {
       <div className="mb-3 flex flex-wrap gap-1.5">
         <span className="pj-chip">کل پیشنهادها: {faNum(quotes.length)}</span>
         <span className="pj-chip" style={{ background: "#dbeafe", color: "#1d4ed8" }}>
-          ارزش باز: {faNum(sumBy("offered"))} تومان
+          ارزش باز: {faNum(sumBy(offered))} تومان
         </span>
         <span className="pj-chip" style={{ background: "#fef3c7", color: "#d97706" }}>
-          ارزش پذیرفته: {faNum(sumBy("accepted"))} تومان
+          ارزش پذیرفته: {faNum(sumBy(accepted))} تومان
         </span>
         <span className="pj-chip" style={{ background: "#dcfce7", color: "#16a34a" }}>
-          ارزش رسیده: {faNum(sumBy("arrived"))} تومان
+          ارزش رسیده: {faNum(sumBy(arrived))} تومان
         </span>
       </div>
       <div className="grid grid-cols-1 gap-3 md:grid-cols-3">

frontend/src/pages/Suppliers/CategoryPage.tsx

@@ -7,6 +7,7 @@ import { nextId } from "../../lib/api";
 import { useAddSupplier, useMaterials, useQuotes, useRemoveSupplier, useStoreData, useSuppliers } from "../../hooks";
 import { useAppStore } from "../../store";
 import { topicByName } from "../../lib/topics";
+import { daysBetween } from "../../lib/formatters";
 import { Header, PageLayout } from "../../components/layout/Header";
 import { EmptyState } from "../../components/EmptyState";
 import { Combobox } from "../../components/Combobox";
@@ -15,7 +16,6 @@ import { materialLabel } from "../../lib/quoteUtils";
 import { Button } from "../../components/ui/button";
 
 // صفحه‌ی تأمین‌کننده‌های یک دسته + فرم افزودن تأمین‌کننده
-// (سلسله‌مراتب دامنه: دسته → تأمین‌کننده؛ در v2.6 دسته = تاپیک)
 export function CategoryPage() {
   useStoreData();
   const { category: catParam = "" } = useParams();
@@ -36,12 +36,29 @@ export function CategoryPage() {
     contact: "",
   });
 
-  // همه‌ی تأمین‌کننده‌ها برای انتخاب سریع (task: کومبوکس کش‌شده)
+  // همه‌ی تأمین‌کننده‌ها برای انتخاب سریع
   const supplierOptions = useMemo(
     () => suppliers.map((s) => ({ id: s.id, name: s.name })),
     [suppliers],
   );
 
+  // محاسبه میانگین زمان تحویل اختصاصی هر تأمین‌کننده بر اساس سفارش‌های تحویل‌شده
+  const supLeadTimes = useMemo(() => {
+    const map = new Map<string, number | null>();
+    suppliers.forEach((s) => {
+      const supQuotes = quotes.filter(
+        (q) => q.supplier_id === s.id && q.status === "arrived" && q.accepted_date && q.arrived_date
+      );
+      const times = supQuotes
+        .map((q) => daysBetween(q.arrived_date, q.accepted_date))
+        .filter((x): x is number => x != null);
+
+      const avg = times.length ? Math.round(times.reduce((a, b) => a + b, 0) / times.length) : null;
+      map.set(s.id, avg);
+    });
+    return map;
+  }, [quotes, suppliers]);
+
   if (!cat) return <Navigate to="/suppliers" replace />;
 
   const sups = suppliersOfCategory(cat, cat, suppliers);
@@ -69,7 +86,6 @@ export function CategoryPage() {
       toast.error("نام تأمین‌کننده را وارد کنید.");
       return;
     }
-    // تأمین‌کننده دقیقاً زیر همین دسته ثبت می‌شود (۱ دسته به ازای هر تأمین‌کننده)
     const s: Supplier = {
       id: nextId("s", suppliers),
       topic: cat,
@@ -101,7 +117,15 @@ export function CategoryPage() {
         ) : (
           <div className="grid grid-cols-2 gap-3 sm:grid-cols-3 lg:grid-cols-4">
             {sups.map((s) => (
-              <SupplierCard key={s.id} s={s} topic={cat} deletable onDelete={removeSup} materials={supMats.get(s.id) || []} />
+              <SupplierCard
+                key={s.id}
+                s={s}
+                topic={cat}
+                deletable
+                onDelete={removeSup}
+                materials={supMats.get(s.id) || []}
+                avgLeadTime={supLeadTimes.get(s.id)}
+              />
             ))}
           </div>
         )}
@@ -161,4 +185,4 @@ export function CategoryPage() {
       </PageLayout>
     </div>
   );
-}
+}

frontend/src/pages/Suppliers/SupplierDetailPage.tsx

@@ -48,20 +48,8 @@ export function SupplierDetailPage() {
     return [...set].sort((a, b) => a.localeCompare(b, "fa"));
   }, [materials]);
 
-  // متریال‌های خریداری‌شده از این تأمین‌کننده (از پیشنهادها)
-  const purchased = useMemo(() => {
-    const out = new Set<string>();
-    quotes.forEach((q) => {
-      if (q.supplier_id !== id) return;
-      (q.line_items || []).forEach((li) => {
-        if (li.rejected) return;
-        const m = materials.find((x) => x.id === li.material_id);
-        if (!m || !m.category) return;
-        out.add(m.category);
-      });
-    });
-    return [...out].sort((a, b) => a.localeCompare(b, "fa"));
-  }, [quotes, materials, id]);
+  // دسته‌ی این تأمین‌کننده — دسته فقط برچسبِ خودِ تأمین‌کننده است (v2.7)
+  const purchased = useMemo(() => [...(s?.categories || [])].sort((a, b) => a.localeCompare(b, "fa")), [s]);
 
   if (!s) {
     return (

frontend/src/pages/Suppliers/supplierUtils.tsx

@@ -1,17 +1,8 @@
 import { Link } from "react-router-dom";
-import { MapPin, Phone, User, Plus } from "lucide-react";
-import type { Material, Supplier } from "../../lib/types";
+import { MapPin, Phone, User, Plus, Timer } from "lucide-react";
+import type { Supplier } from "../../lib/types";
 import { normalize } from "../../lib/normalize";
-export function topicCategories(topic: string, materials: Material[], suppliers: Supplier[]): string[] {
-  const out = new Set<string>();
-  materials
-    .filter((m) => topic && normalize(m.topic) === normalize(topic) && m.category)
-    .forEach((m) => out.add(m.category));
-  suppliers
-    .filter((s) => topic && normalize(s.topic) === normalize(topic))
-    .forEach((s) => (s.categories || []).forEach((c) => c && out.add(c)));
-  return [...out].sort((a, b) => a.localeCompare(b, "fa"));
-}
+import { fmtNum } from "../../lib/formatters";
 
 export function suppliersOfCategory(topic: string, cat: string, suppliers: Supplier[]): Supplier[] {
   return suppliers.filter(
@@ -19,32 +10,44 @@ export function suppliersOfCategory(topic: string, cat: string, suppliers: Suppl
   );
 }
 
-// کارت تأمین‌کننده
+// کارت تأمین‌کننده همراه با برچسب میانگین زمان تحویل
 export function SupplierCard({
   s,
   topic,
   deletable,
   onDelete,
   materials = [],
+  avgLeadTime,
 }: {
   s: Supplier;
   topic: string;
   deletable?: boolean;
   onDelete?: (id: string) => void;
-  // متریال‌های خریداری‌شده از این تأمین‌کننده (به‌جای دسته‌بندی)
   materials?: string[];
+  avgLeadTime?: number | null;
 }) {
   return (
     <div className="sup-card">
-      <div className="sc-head">
-        <Link to={`/suppliers/${s.id}`} className="sc-name-link">
+      <div className="sc-head flex items-start justify-between gap-2">
+        <Link to={`/suppliers/${s.id}`} className="sc-name-link min-w-0 flex-1 leading-snug">
           {s.name}
         </Link>
-        {deletable && onDelete && (
-          <button type="button" className="sup-del" title="حذف تأمین‌کننده" onClick={() => onDelete(s.id)}>
-            ×
-          </button>
-        )}
+        <div className="flex items-center gap-1.5 shrink-0">
+          {avgLeadTime != null && (
+            <span
+              className="inline-flex items-center gap-1 whitespace-nowrap rounded-md bg-emerald-100 border border-emerald-300/80 px-2 py-0.5 text-xs font-bold text-emerald-900 shadow-2xs dark:bg-emerald-950 dark:border-emerald-800 dark:text-emerald-200 tabular-nums"
+              title="میانگین زمان تحویل سفارش‌ها"
+            >
+              <Timer className="h-3.5 w-3.5 text-emerald-700 dark:text-emerald-400" />
+              <span>{fmtNum(avgLeadTime)} روز</span>
+            </span>
+          )}
+          {deletable && onDelete && (
+            <button type="button" className="sup-del" title="حذف تأمین‌کننده" onClick={() => onDelete(s.id)}>
+              ×
+            </button>
+          )}
+        </div>
       </div>
       <div className="sc-meta">
         <span>

frontend/src/pages/Units/UnitsPage.tsx

@@ -496,7 +496,7 @@ export function UnitsPage() {
                               )}
                             />
                           )}
-                          <span className="truncate">{g.base}</span>
+                          <span className="whitespace-normal break-words text-start">{g.base}</span>
                         </span>
                         <span className="ut-ref">{hasChildren ? faNum(g.variants.length) : g.repRef || "—"}</span>
                       </button>
@@ -519,7 +519,7 @@ export function UnitsPage() {
                                   )}
                                   onClick={() => setMaterialId(v.id)}
                                 >
-                                  <span className="truncate">{v.label}</span>
+                                  <span className="whitespace-normal break-words text-start">{v.label}</span>
                                   <span className="ut-ref">{v.refUnit || "—"}</span>
                                 </button>
                               ))}

frontend/src/pages/Wizard/Step1TopicSupplier.tsx

@@ -1,5 +1,5 @@
 import { useMemo, useState } from "react";
-import type { Material, Supplier } from "../../lib/types";
+import type { Supplier } from "../../lib/types";
 import { normalize } from "../../lib/normalize";
 import { useSuppliers } from "../../hooks";
 import { useAppStore } from "../../store";
@@ -179,14 +179,3 @@ export function Step1TopicSupplier({
   );
 }
 
-// دسته‌های موجود داخل یک تاپیک (از materials + تأمین‌کننده‌ها)
-export function topicCategories(topic: string, suppliers: Supplier[], materials: Material[]): string[] {
-  const out = new Set<string>();
-  materials
-    .filter((m) => topic && normalize(m.topic) === normalize(topic) && m.category)
-    .forEach((m) => out.add(m.category));
-  suppliers
-    .filter((s) => topic && normalize(s.topic) === normalize(topic))
-    .forEach((s) => (s.categories || []).forEach((c) => c && out.add(c)));
-  return [...out].sort((a, b) => a.localeCompare(b, "fa"));
-}

frontend/src/pages/Wizard/Step2LineItems.tsx

@@ -2,7 +2,7 @@ import { useEffect, useMemo, useState } from "react";
 import type { Material } from "../../lib/types";
 import { normalize } from "../../lib/normalize";
 import { useMaterials } from "../../hooks";
-import { specsKey } from "../../lib/quoteUtils";
+import { matchMaterial, materialBaseName } from "../../lib/quoteUtils";
 import { Combobox } from "../../components/Combobox";
 import { NumberInput } from "../../components/NumberInput";
 import { MultiSelectCombobox } from "../../components/MultiSelectCombobox";
@@ -41,43 +41,18 @@ export function itemRowLabel(it: ItemDraft): string {
   return qtyPart ? `${name} -- ${qtyPart}` : name;
 }
 
-// نام پایه‌ی متریال از نامِ ذخیره‌شده.
-// متریال‌های جدید فقط نامِ خودِ متریال را در name دارند (برند در brand_ids و
-// مشخصه‌ها در attributes ذخیره می‌شوند) و دست‌نخورده برمی‌گردند. رکوردهای قدیمی
-// name را به شکل «برند + دسته + مشخصه» ذخیره کرده‌اند؛ آن قطعات جدا می‌شوند تا
-// نامِ پایه باقی بماند.
-function materialBaseName(name: string, brand: string, specs: string[], category = ""): string {
-  const fallback = (name || "").trim();
-  if (!fallback) return "";
-  let base = fallback;
-  // بلندترین قطعه اول حذف می‌شود تا حذف‌های جزئی، رشته را ناقص نکنند
-  const parts = [brand, category, ...specs]
-    .map((p) => (p || "").trim())
-    .filter(Boolean)
-    .sort((a, b) => b.length - a.length);
-  for (const p of parts) {
-    if (!base.includes(p)) continue;
-    const next = base.split(p).join(" ").replace(/\s+/g, " ").trim();
-    // اگر حذفِ این قطعه کلِ نام را خالی کند، یعنی همان نامِ متریال بوده — نگهش دار
-    if (!next) continue;
-    base = next;
-  }
-  // شکلِ قدیمیِ خراب می‌تواند فقط یک مشخصه باقی بگذارد؛ آن دیگر نامِ متریال نیست
-  if (parts.some((p) => p === base)) return fallback;
-  return base || fallback;
-}
-
-// مقادیر مجزای category/brand/spec داخل تاپیک
+// مقادیر مجزای name/brand/spec در کاتالوگ سراسری
 export function materialOptions(
   materials: Material[],
-  topic: string,
+  _topic: string,
   item: ItemDraft,
-  field: "cat" | "brand" | "spec",
+  field: "brand" | "spec",
   allItems: ItemDraft[] = [],
   apiBrands: string[] = [],
   apiSpecs: string[] = [],
 ): string[] {
-  let list = materials.filter((m) => topic && normalize(m.topic) === normalize(topic));
+  // متریال‌ها سراسری هستند — مستقل از تاپیک
+  let list = materials;
   const cat = item.cat.trim();
 
   const fromRows = (sel: (it: ItemDraft) => string | string[]): string[] => {
@@ -91,19 +66,19 @@ export function materialOptions(
     return [...out];
   };
 
-  if (field === "cat") {
-    const base = new Set(list.map((m) => m.category).filter(Boolean));
-    fromRows((it) => it.cat).forEach((c) => base.add(c));
-    return [...base].sort((a, b) => a.localeCompare(b, "fa"));
-  }
   if (field === "brand") {
-    // برند سراسری است — مستقل از تاپیک و دسته
+    // برند سراسری است — مستقل از تاپیک و متریال
     const allBrands = new Set(materials.map((m) => m.brand).filter(Boolean));
     apiBrands.forEach((b) => b && allBrands.add(b));
     fromRows((it) => it.brand).forEach((b) => allBrands.add(b));
     return [...allBrands].sort((a, b) => a.localeCompare(b, "fa"));
   }
-  if (cat) list = list.filter((m) => normalize(m.category) === normalize(cat));
+  // فیلدِ اولِ هر ردیف «نام متریال» است (نه دسته) — مشخصه‌های متریالِ
+  // هم‌نام پیشنهاد می‌شوند.
+  if (cat)
+    list = list.filter(
+      (m) => normalize(materialBaseName(m.name, m.brand, m.specs)) === normalize(cat),
+    );
   // مشخصه‌ها سراسری هستند: رجیستری attribute-definitions + مشخصه‌های همه‌ی
   // متریال‌ها + مشخصه‌های تایپ‌شده در سایر ردیف‌ها. به تاپیک/دسته/برندِ قلمِ
   // فعلی گره نمی‌خورند تا هنگام افزودن پیشنهاد جدید همیشه در دسترس باشند.
@@ -134,7 +109,7 @@ export function Step2LineItems({ items, onItemsChange, selectedTopic, onRemember
   const allMaterialNames = useMemo(() => {
     const set = new Set<string>();
     materials.forEach((m) => {
-      const base = materialBaseName(m.name, m.brand, m.specs, m.category);
+      const base = materialBaseName(m.name, m.brand, m.specs);
       if (base) set.add(base);
     });
     return [...set].sort((a, b) => a.localeCompare(b, "fa"));
@@ -192,13 +167,9 @@ export function Step2LineItems({ items, onItemsChange, selectedTopic, onRemember
       if (!it.specs.length) return;
       rec = { topic: selectedTopic, category: it.cat.trim(), brand: it.brand.trim(), specs: it.specs };
     }
-    const dup = materials.some(
-      (m) =>
-        normalize(m.topic) === normalize(rec.topic) &&
-        normalize(m.category) === normalize(rec.category) &&
-        normalize(m.brand) === normalize(rec.brand) &&
-        specsKey(m.specs) === specsKey(rec.specs),
-    );
+    // rec.category در واقع نامِ متریال است (فیلدِ اولِ ردیف) — تطبیق بر اساس
+    // همان هویتِ متریال انجام می‌شود، نه دسته.
+    const dup = !!matchMaterial(materials, rec.category, rec.brand, rec.specs);
     if (dup) return;
     onRemember(rec);
   };

frontend/src/pages/Wizard/WizardPage.tsx

@@ -20,7 +20,7 @@ import { topicByName } from "../../lib/topics";
 import { useAppStore } from "../../store";
 import { normalize } from "../../lib/normalize";
 import { faNum } from "../../lib/formatters";
-import { specsKey } from "../../lib/quoteUtils";
+import { matchMaterial } from "../../lib/quoteUtils";
 import { Header, PageLayout } from "../../components/layout/Header";
 import { Stepper } from "./Stepper";
 import { Step1TopicSupplier } from "./Step1TopicSupplier";
@@ -291,22 +291,19 @@ export function WizardPage() {
       if (!cat && !brand && qty == null && price == null) continue;
 
       const wantName = (cat || brand || specs.join(" ") || "").trim() || "کالای جدید";
+      // هویت متریال = نام + برند + مشخصه. پیش از v2.7 دسته هم در تطبیق بود؛
+      // دسته دیگر روی متریال نیست و تکیه بر نام جلوی اشتباه‌گرفتن دو متریال با
+      // برند و مشخصه‌ی یکسان را می‌گیرد (matchMaterial نامِ پایه را هم می‌بیند
+      // تا رکوردهای قدیمی با نامِ «برند + دسته + مشخصه» پیدا شوند).
       let material = materials.find((m) => looksLikeUuid(m.id) && normalize(m.name) === normalize(wantName));
       if (!material) {
-        material = materials.find(
-          (m) =>
-            looksLikeUuid(m.id) &&
-            normalize(m.category) === normalize(cat) &&
-            normalize(m.brand) === normalize(brand) &&
-            specsKey(m.specs) === specsKey(specs),
-        );
-      }
-      // رکوردهای قدیمی name را به شکل «برند + دسته + مشخصه» ذخیره کرده‌اند؛
-      // تطبیق دوم بر اساس category/brand/specs انجام می‌شود تا آن‌ها هم پیدا شوند.
-      if (!material && cat) {
-        material = materials.find(
-          (m) => looksLikeUuid(m.id) && normalize(m.category) === normalize(cat) && normalize(m.brand) === normalize(brand),
+        const matched = matchMaterial(
+          materials.filter((m) => looksLikeUuid(m.id)),
+          cat,
+          brand,
+          specs,
         );
+        if (matched) material = matched;
       }
       let materialId: string;
       if (material && looksLikeUuid(material.id)) {
@@ -317,7 +314,6 @@ export function WizardPage() {
             id: nextId("m", materials),
             name: wantName,
             topic: selectedTopic,
-            category: cat,
             brand,
             specs,
             base_unit: unit || "عدد",

frontend/src/store/index.ts

@@ -7,7 +7,6 @@
 
 import { create } from "zustand";
 import type {
-  CategoryUnit,
   Material,
   Project,
   Quote,
@@ -15,7 +14,6 @@ import type {
   Store,
   Supplier,
   Topic,
-  UnitConversion,
 } from "../lib/types";
 
 interface AppStore {
@@ -24,8 +22,6 @@ interface AppStore {
   materials: Material[];
   projects: Project[];
   quotes: Quote[];
-  categoryUnits: CategoryUnit[];
-  unitConversions: UnitConversion[];
   standardConversions: StandardConversion[];
   topics: Topic[]; // دسته‌بندی‌های ۸گانه — از /material-categories
 
@@ -45,9 +41,6 @@ interface AppStore {
   deleteSupplier: (id: string) => void;
   addMaterial: (m: Material) => void;
   addProject: (p: Project) => void;
-  setCategoryUnit: (cu: CategoryUnit) => void;
-  setConversion: (c: UnitConversion) => void;
-  deleteConversion: (id: string) => void;
   setStandardConversion: (sc: StandardConversion) => void;
   deleteStandardConversion: (id: string) => void;
 
@@ -62,8 +55,6 @@ export const useAppStore = create<AppStore>()((set) => ({
   materials: [],
   projects: [],
   quotes: [],
-  categoryUnits: [],
-  unitConversions: [],
   standardConversions: [],
   topics: [],
 
@@ -77,8 +68,6 @@ export const useAppStore = create<AppStore>()((set) => ({
       materials: store.materials,
       projects: store.projects,
       quotes: store.quotes,
-      categoryUnits: store.categoryUnits,
-      unitConversions: store.unitConversions,
       standardConversions: store.standardConversions,
       topics: store.topics,
     }),
@@ -96,24 +85,6 @@ export const useAppStore = create<AppStore>()((set) => ({
   deleteSupplier: (id) => set((s) => ({ suppliers: s.suppliers.filter((x) => x.id !== id) })),
   addMaterial: (m) => set((s) => ({ materials: [...s.materials, m] })),
   addProject: (p) => set((s) => ({ projects: [...s.projects, p] })),
-  setCategoryUnit: (cu) =>
-    set((s) => {
-      const idx = s.categoryUnits.findIndex((x) => x.id === cu.id);
-      const categoryUnits = [...s.categoryUnits];
-      if (idx >= 0) categoryUnits[idx] = cu;
-      else categoryUnits.push(cu);
-      return { categoryUnits };
-    }),
-  setConversion: (c) =>
-    set((s) => {
-      const idx = s.unitConversions.findIndex((x) => x.id === c.id);
-      const unitConversions = [...s.unitConversions];
-      if (idx >= 0) unitConversions[idx] = c;
-      else unitConversions.push(c);
-      return { unitConversions };
-    }),
-  deleteConversion: (id) =>
-    set((s) => ({ unitConversions: s.unitConversions.filter((x) => x.id !== id) })),
   setStandardConversion: (sc) =>
     set((s) => {
       const idx = s.standardConversions.findIndex((x) => x.id === sc.id);

sql/migration.sql

@@ -164,14 +164,12 @@ CREATE TABLE category_attributes (
     CONSTRAINT uq_category_attribute UNIQUE (category_id, attribute_definition_id)
 );
 
--- ---------- MATERIALS (GLOBAL catalog entities — v2.5) ----------
--- category_id is NULLABLE and DERIVED automatically from the first linked
--- supplier (supplier_materials insert, first-link-wins). name is GLOBALLY
+-- ---------- MATERIALS (GLOBAL catalog entities — v2.6/v2.7) ----------
+-- Materials are global, category-free entities. name is GLOBALLY
 -- unique (uq_material_name). topic is a legacy display column no longer
 -- written by the app.
 CREATE TABLE materials (
     id                UUID            NOT NULL DEFAULT gen_random_uuid() PRIMARY KEY,
-    category_id       UUID            REFERENCES material_categories(id) ON DELETE RESTRICT,
     name              TEXT            NOT NULL,
     topic             TEXT,           -- LEGACY display column
     canonical_unit_id INTEGER         NOT NULL REFERENCES units(id) ON DELETE RESTRICT,
@@ -553,6 +551,35 @@ CREATE TABLE standard_conversions (
     CONSTRAINT uq_standard_conversion UNIQUE (from_unit, to_unit)
 );
 
+-- Inter-project material transfers
+CREATE TABLE project_transfers (
+    id                  UUID            NOT NULL DEFAULT gen_random_uuid() PRIMARY KEY,
+    from_project_id     UUID            NOT NULL REFERENCES projects(id) ON DELETE RESTRICT,
+    from_warehouse_id   UUID            NOT NULL REFERENCES warehouses(id) ON DELETE RESTRICT,
+    to_project_id       UUID            NOT NULL REFERENCES projects(id) ON DELETE RESTRICT,
+    material_id         UUID            NOT NULL REFERENCES materials(id) ON DELETE RESTRICT,
+    brand_id            UUID            REFERENCES brands(id) ON DELETE SET NULL,
+    unit_id             INTEGER         NOT NULL REFERENCES units(id) ON DELETE RESTRICT,
+    quantity            NUMERIC(18,6)   NOT NULL CHECK (quantity > 0),
+    specs               JSONB           NOT NULL DEFAULT '{}'::jsonb,
+    specs_hash          TEXT            NOT NULL DEFAULT 'default',
+    note                TEXT,
+    status              TEXT            NOT NULL DEFAULT 'in_transit' CHECK (status IN ('in_transit', 'received', 'cancelled')),
+    out_transaction_id  UUID            REFERENCES inventory_transactions(id) ON DELETE SET NULL,
+    transfer_date       TIMESTAMPTZ     NOT NULL DEFAULT now(),
+    transferred_by      TEXT,
+    received_at         TIMESTAMPTZ,
+    received_by         TEXT,
+    to_warehouse_id     UUID            REFERENCES warehouses(id) ON DELETE SET NULL,
+    receipt_allocations JSONB,
+    created_at          TIMESTAMPTZ     NOT NULL DEFAULT now(),
+    updated_at          TIMESTAMPTZ     NOT NULL DEFAULT now()
+);
+
+CREATE INDEX idx_project_transfers_from ON project_transfers(from_project_id, status);
+CREATE INDEX idx_project_transfers_to ON project_transfers(to_project_id, status);
+
+
 -- ============================================================================
 -- UPDATED_AT TRIGGER (auto-set updated_at on row modification)
 -- ============================================================================
@@ -581,28 +608,14 @@ CREATE TRIGGER trg_quote_attachments_updated_at
     BEFORE UPDATE ON quote_attachments
     FOR EACH ROW EXECUTE FUNCTION set_updated_at();
 
+CREATE TRIGGER trg_project_transfers_updated_at
+    BEFORE UPDATE ON project_transfers
+    FOR EACH ROW EXECUTE FUNCTION set_updated_at();
+
 -- ============================================================================
 -- AUTOMATION TRIGGERS (v2.5 + v2.6)
 -- ============================================================================
 
--- Derive materials.category_id from the FIRST linked supplier (first-link-wins).
--- Idempotent: only touches rows where category_id IS NULL.
-CREATE OR REPLACE FUNCTION fn_derive_material_category()
-RETURNS TRIGGER AS $$
-BEGIN
-    UPDATE materials
-    SET category_id = (SELECT category_id FROM suppliers WHERE id = NEW.supplier_id),
-        updated_at  = now()
-    WHERE id = NEW.material_id
-      AND category_id IS NULL;
-    RETURN NEW;
-END;
-$$ LANGUAGE plpgsql;
-
-CREATE TRIGGER trg_supplier_materials_derive_category
-    AFTER INSERT ON supplier_materials
-    FOR EACH ROW EXECUTE FUNCTION fn_derive_material_category();
-
 -- Sync supplier_materials.last_quoted_price / last_quoted_at when an item
 -- decision becomes 'chosen' (INSERT or UPDATE — the accept-quote flow
 -- inserts decisions directly as 'chosen').