feat: make Citations and Attributions display enable default (#5508)

Co-authored-by: StyleZhang <jasonapring2015@outlook.com>

api/core/app/apps/agent_chat/app_generator.py

@@ -82,6 +82,11 @@ class AgentChatAppGenerator(MessageBasedAppGenerator):
                 config=args.get('model_config')
             )
 
+            # always enable retriever resource in debugger mode
+            override_model_config_dict["retriever_resource"] = {
+                "enabled": True
+            }
+
         # parse files
         files = args['files'] if args.get('files') else []
         message_file_parser = MessageFileParser(tenant_id=app_model.tenant_id, app_id=app_model.id)