Merge remote-tracking branch 'origin/master' into ji

# Conflicts:
#	offline-backend-20260512/backend/app/gateway/app.py
#	offline-backend-20260512/backend/config.yaml
#	offline-backend-20260512/backend/packages/harness/deerflow/persistence/models/__init__.py
#	offline-backend-20260512/backend/packages/harness/deerflow/runtime/checkpointer/async_provider.py

frontend-web/src/components/page-sdebar.css

@@ -119,7 +119,8 @@
     border: 1px solid;
     border-color: rgba(43, 143, 254, 0.6);
     border-radius: 4px;
-    backdrop-filter: blur(2px);
+    backdrop-filter: blur(20px);
+    -webkit-backdrop-filter: blur(20px);
     position: absolute;
     left: 108px;
     top: 0;