fix: IM俱乐部过滤返回current_club_id并规范化比对

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/views/kefu.py

@@ -1375,8 +1375,12 @@ class KefuImUserClubFilterView(APIView):
         if scope == DATA_SCOPE_ALL:
             allowed_ids = [i for i in im_ids if i in club_map]
         else:
-            current = resolve_club_id_from_request(request)
-            allowed_ids = [i for i in im_ids if club_map.get(i) == current]
+            current = (resolve_club_id_from_request(request) or '').strip()
+            # 严格按用户归属俱乐部过滤；ClubID 空的用户归入默认俱乐部
+            allowed_ids = [
+                i for i in im_ids
+                if (club_map.get(i) or '').strip() == current
+            ]
 
         return Response({
             'code': 0,
@@ -1384,6 +1388,10 @@ class KefuImUserClubFilterView(APIView):
             'data': {
                 'allowed_ids': allowed_ids,
                 'club_map': club_map,
+                'current_club_id': (
+                    None if scope == DATA_SCOPE_ALL
+                    else (resolve_club_id_from_request(request) or '').strip()
+                ),
                 'scope': 'all' if scope == DATA_SCOPE_ALL else 'single',
             },
         })