feat(monitoring): observability stack + app instrumentation

- /health/ready (DB+MinIO+Casdoor checks, webhook post-deploy gate),
  /metrics via prometheus-fastapi-instrumentator, Sentry/GlitchTip capture,
  X-Request-ID middleware + JSON access logging (PROCUREMENT_LOG_FORMAT)
- server-side analytics (OpenPanel Track API): login, quote lifecycle,
  receipts — fire-and-forget, disabled without env config
- monitoring/ compose project: GlitchTip(+pg), Prometheus(+alerts),
  Grafana(provisioned ERP dashboard), Loki+Promtail, node/postgres
  exporters, cAdvisor — mem-limited (~2.2GB), loopback admin UIs,
  separate from app deploys; erp_shared network for scraping
- frontend: @openpanel/web + @sentry/react (build-arg gated, no-op when
  unset), funnel events (login, wizard steps, quote submitted)
- compose: api healthcheck, observability env wiring, .env.example keys

backend/app/services/quote_service.py

@@ -4,6 +4,7 @@ Every mutation here runs in ONE ``async with db.begin()`` block; any failure
 rolls the whole operation back. All state changes log a quote_event in the
 same transaction.
 """
+import asyncio
 import logging
 from datetime import date, datetime, timezone
 from uuid import UUID
@@ -33,6 +34,7 @@ from app.schemas.procurement import (
     QuoteUpdate,
     RejectQuoteIn,
 )
+from app.services import analytics
 from app.services.material_service import ensure_brand_material_belong
 from app.utils.errors import ConflictError, NotFoundError, ValidationError
 
@@ -56,6 +58,19 @@ def utcnow() -> datetime:
 
 def _add_event(db: AsyncSession, quote_id: UUID, event_type: str, payload: dict | None = None, actor: str | None = None) -> None:
     db.add(QuoteEvent(quote_id=quote_id, event_type=event_type, payload=payload or {}, actor=actor))
+    # Product analytics (fire-and-forget, never blocks or raises): the whole
+    # quote lifecycle funnels through here, so one hook covers every
+    # status transition for the OpenPanel dashboards.
+    try:
+        asyncio.get_running_loop().create_task(
+            analytics.track(
+                f"quote_{event_type}",
+                {"quote_id": str(quote_id), "actor": actor, **(payload or {})},
+                profile_id=actor,
+            )
+        )
+    except RuntimeError:  # no running loop (defensive — callers are async)
+        pass
 
 
 async def get_quote_or_404(db: AsyncSession, quote_id: UUID) -> Quote: