feat: try fix

services/agents.py

@@ -305,10 +305,21 @@ def format_agent_result(result):
             }
 
         elif isinstance(msg, ToolMessage):
-            output["tool_result"] = json.loads(msg.content)
+            try:
+                output["tool_result"] = json.loads(msg.content)
+            except Exception:
+                output["tool_result"] = msg.content  # 若非 JSON
 
         elif isinstance(msg, AIMessage) and not msg.additional_kwargs.get("function_call"):
-            output["final_response"] = msg.content
+            # 如果是 list of dict（如 [{'type': 'text','text':...}]）
+            if isinstance(msg.content, list):
+                # 只取第一個 text
+                if len(msg.content) > 0 and "text" in msg.content[0]:
+                    output["final_response"] = msg.content[0]["text"]
+                else:
+                    output["final_response"] = str(msg.content)
+            else:
+                output["final_response"] = msg.content
 
     return output
 
@@ -322,5 +333,5 @@ def run_agent(user_input: str):
 
     output_format = format_agent_result( result )
     print(f"output_format:{output_format}")
-    
+
     return { "output": output_format }