Finish CUST-WP-0011 and implement STATE-WP-0061 suggestion backlog.

Add persisted Suggestion entities with WSJF ranking, relevance bumps,
REST/MCP write surfaces, /suggestions dashboard page, and daily triage
digest integration. Document the cluster operating model, archive the
completed migration workplan, and seed WARDEN-WP-0012 routing scenarios.

api/routers/capability_requests.py

@@ -13,6 +13,7 @@ from api.models.capability_request import CapabilityRequest
 from api.models.domain import Domain
 from api.models.managed_repo import ManagedRepo
 from api.models.task import Task
+from api.services.suggestion_relevance import bump_matching_for_capability_request
 from api.schemas.capability_request import (
     CapabilityRequestAccept,
     CapabilityRequestCreate,
@@ -68,6 +69,23 @@ def _build_capability_request(
     )
 
 
+async def _on_capability_request_persisted(
+    session: AsyncSession,
+    req: CapabilityRequest,
+    body: CapabilityRequestCreate,
+) -> None:
+    await session.flush()
+    await bump_matching_for_capability_request(
+        session,
+        request_id=req.id,
+        title=body.title,
+        description=body.description or "",
+        capability_type=body.capability_type,
+        catalog_entry_id=req.catalog_entry_id,
+    )
+    await _notify_on_create(session, req, body)
+
+
 async def _notify_on_create(
     session: AsyncSession,
     req: CapabilityRequest,
@@ -405,7 +423,7 @@ router.include_router(
         request_read_schema=CapabilityRequestRead,
         route_request=_route_capability,
         build_request=_build_capability_request,
-        on_request_persisted=_notify_on_create,
+        on_request_persisted=_on_capability_request_persisted,
         check_transition=_check_transition,
         apply_accept_fields=_apply_accept_fields,
         after_accept=_notify_on_accept,