Fix: add avatar for UI (#11080)

### What problem does this PR solve?

Add avatar for admin UI.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

api/db/services/canvas_service.py

@@ -67,6 +67,7 @@ class UserCanvasService(CommonService):
         # will get all permitted agents, be cautious
         fields = [
             cls.model.id,
+            cls.model.avatar,
             cls.model.title,
             cls.model.permission,
             cls.model.canvas_type,

api/db/services/knowledgebase_service.py

@@ -201,6 +201,7 @@ class KnowledgebaseService(CommonService):
         # will get all permitted kb, be cautious.
         fields = [
             cls.model.name,
+            cls.model.avatar,
             cls.model.language,
             cls.model.permission,
             cls.model.doc_num,

api/utils/health_utils.py

@@ -146,7 +146,10 @@ def get_redis_info():
 def check_ragflow_server_alive():
     start_time = timer()
     try:
-        response = requests.get(f'http://{settings.HOST_IP}:{settings.HOST_PORT}/v1/system/ping')
+        url = f'http://{settings.HOST_IP}:{settings.HOST_PORT}/v1/system/ping'
+        if '0.0.0.0' in url:
+            url.replace('0.0.0.0', '127.0.0.1')
+        response = requests.get(url)
         if response.status_code == 200:
             return {"status": "alive", "message": f"Confirm elapsed: {(timer() - start_time) * 1000.0:.1f} ms."}
         else: