feat(inventory): list-based ChangeInventoryPage + mobile-first UX + return ledger controls

- All ChangeInventoryPage sections (withdrawal/damage/waste/loss/transfer/
  stock-count/project-transfer) become list-based like the withdrawal
  section: pick a warehouse, see its stock rows, material name is only an
  optional filter; manual material/brand/unit entry removed everywhere
  except PURCHASE.
- RETURN redesigned: day-range presets (today/yesterday/7d/30d + Jalali
  custom range) with server-side filters, immutable-ledger returnable
  remainder per withdrawal (REF:[tx-id] note tag + FIFO attribution for
  legacy returns, round4 float-safe), destination warehouse selector.
- PROJECT_TRANSFER: row-based list with one destination project per batch;
  sequential submits keep failed rows inline with errors and drop
  succeeded rows; history dashboard untouched.
- PURCHASE: unit locked to catalog (search-only Combobox), wizard-style
  '+ register new material' option with yellow warning, optional Key-Value
  specs editor (replaces mandatory text chips), continuous-entry UX
  (warehouse/date kept, auto-focus, session log, duplicate warning).
- Mobile-first: responsive table/cards core (StockTable), numeric keyboards
  (inputMode+pattern), sticky bottom submit bar with dynamic counter above
  MobileTabBar incl. safe-area inset, horizontally scrollable touch chips.
- Backend fix (prereq of RETURN): GET /inventory/transactions date filters
  crashed with 500 under asyncpg (string vs timestamptz); parse to aware
  UTC datetimes (DB runs Etc/UTC).
- docs/inventory-ledger-gaps.md: ledger gap report (server-side return cap,
  standalone TRANSFER_IN, transfer row fallback, audit coverage, legacy
  REF backfill, UTC day semantics, pagination gaps).

frontend/src/lib/api.ts

@@ -1702,11 +1702,18 @@ export const apiV26 = {
       const data = await getData<Parameters<typeof rawInventory>[0][]>(`/inventory?${qs}`);
       return data.map(rawInventory);
     },
-    transactions: async (params: { project_id?: string; warehouse_id?: string; transaction_type?: string; date_from?: string; date_to?: string; sort?: string } = {}): Promise<InventoryTransaction[]> => {
+    transactions: async (params: { project_id?: string; warehouse_id?: string; transaction_type?: string; date_from?: string; date_to?: string; sort?: string; page?: number } = {}): Promise<InventoryTransaction[]> => {
       const pid = params.project_id ?? activeProjectId() ?? undefined;
       const qs = new URLSearchParams({ page_size: "100", ...cleanParams({ ...params, project_id: pid }) }).toString();
       return getData<InventoryTransaction[]>(`/inventory/transactions?${qs}`);
     },
+    // همان transactions با meta.total برای صفحه‌بندی «نمایش بیشتر»
+    transactionsPaged: async (params: { project_id?: string; warehouse_id?: string; transaction_type?: string; date_from?: string; date_to?: string; sort?: string; page?: number } = {}): Promise<{ rows: InventoryTransaction[]; total: number }> => {
+      const pid = params.project_id ?? activeProjectId() ?? undefined;
+      const qs = new URLSearchParams({ page_size: "100", ...cleanParams({ ...params, project_id: pid }) }).toString();
+      const res = await request<{ data: InventoryTransaction[]; meta?: { total?: number } }>(`/inventory/transactions?${qs}`);
+      return { rows: res.data ?? [], total: res.meta?.total ?? res.data?.length ?? 0 };
+    },
     createTransaction: async (body: {
       transaction_type: TransactionType; warehouse_id: string; dest_warehouse_id?: string | null;
       material_id: string; brand_id?: string | null; quantity?: number | null;