feat(stack): full overhaul — hardening, ops tooling, monitoring, analytics, chatbot

Security: deep /api/health (DB+MinIO probes, 503 on failure) + /api/live;
rate-limited public forms with honeypots; real client IP behind Traefik
(--proxy-headers); TipTap URL sanitization on write (nh3); non-root
containers + slim .dockerignore; prod MinIO console bound to 127.0.0.1;
HSTS/nosniff on TLS routers; JWT 8h; no default credentials in code.

Reliability: Alembic migrations (create_all baseline); graceful shutdown
(exec uvicorn); hardened backups (checksums, sanity check, freshness gauge,
optional rclone off-site) + restore.sh + hourly db-backup sidecar (ops
profile); stack.sh ops tooling (deploy/logs/health/backup/restore/monitoring);
.gitattributes LF for shell scripts.

Orchestration: json-file log rotation, pinned images, per-service memory
limits, edge/internal networks, Traefik ping/accesslog/metrics + flood
limiter, conditional minio-setup, pgvector db image, one-shot db-init
(umami + aramesh_chatbot databases).

Chatbot: unified from site-chatbot branch (RAG + pgvector, SSE, ChatWidget).

Monitoring: Prometheus/Alertmanager/Loki/Promtail/Grafana + cAdvisor,
node/postgres/blackbox exporters, provisioned dashboards and 10 alert
rules; alerts delivered to Bale (tapi.bale.ai — Telegram-compatible).

Analytics: Umami on shared Postgres, build-time tracker injection, custom
events (contact/newsletter/phone/chat/lang) via frontend/src/analytics.ts.

Hygiene: CSV export for contact messages and subscribers; upload image
optimization (Pillow); CI script + GitHub-compatible workflow; audit.sh;
gen-env.sh for strong credentials.

backend/app/schemas.py

@@ -3,6 +3,8 @@ from typing import Literal, Optional
 
 from pydantic import BaseModel, ConfigDict, EmailStr, Field, create_model, field_validator
 
+from .sanitize import sanitize_doc
+
 # ---------- پایه ----------
 
 
@@ -386,10 +388,14 @@ class ContactIn(BaseModel):
     name: str = Field(min_length=3, max_length=128)
     phone: str = Field(pattern=r"^[\d۰-۹+\-\s]{8,15}$")
     note: str = Field(default="", max_length=2000)
+    # honeypot — فیلد پنهان فرم؛ کاربر واقعی هرگز آن را پر نمی‌کند
+    website: str = Field(default="", max_length=128)
 
 
 class NewsletterIn(BaseModel):
     email: EmailStr
+    # honeypot — فیلد پنهان فرم؛ کاربر واقعی هرگز آن را پر نمی‌کند
+    website: str = Field(default="", max_length=128)
 
 
 # ---------- ورودی‌های پنل مدیریت ----------
@@ -460,12 +466,13 @@ EMPTY_DOC = {"type": "doc", "content": [{"type": "paragraph"}]}
 
 
 def validate_doc_body(value: object) -> dict:
-    """بدنه مقاله باید یک سند TipTap (ProseMirror) معتبر از نظر ساختار باشد."""
+    """بدنه مقاله باید یک سند TipTap (ProseMirror) معتبر از نظر ساختار باشد و
+    آدرس‌های href/src آن به اسکیم‌های امن محدود شوند."""
     if not value:
         return dict(EMPTY_DOC)
     if not isinstance(value, dict) or value.get("type") != "doc" or not isinstance(value.get("content"), list):
         raise ValueError("body must be a TipTap doc: {type: 'doc', content: [...]}")
-    return value
+    return sanitize_doc(value)
 
 
 class ArticleIn(BaseModel):