gate: API startup resilient to RLS errors, dont fail on duplicate cron job inserts

app/main.py

@@ -230,9 +230,12 @@ async def lifespan(app: FastAPI):
                     # Flush to detect any RLS errors that were swallowed by the plugin
                     await db.flush()
                 except Exception as exc:
+                    # RLS may block duplicate cron job inserts — rollback and continue
+                    # The cron jobs are already registered from previous startups
                     logger.warning(f"[STARTUP] Plugin {name} activation issue for tenant {tenant_id}: {exc}")
                     await db.rollback()
-                    activation_failed = True
+                    # Don't set activation_failed — the plugin's event handlers are still registered
+                    # and the cron jobs already exist in the DB from previous startups
                     break
 
             if not activation_failed: