feat：添加图表数据

app/services/agent.py

@@ -158,7 +158,7 @@ class AgentService:
         if result.status == "cancelled":
             return "用户取消了本次补充"
         if result.status == "failed":
-            return _clip(f"处理失败：{result.failure_reason or '未知原因'}")
+            return _clip(f"处理失败：{result.answer or '未知原因'}")
         if result.answer:
             return _clip(result.answer)
         requirement = state.get("requirement")
@@ -176,8 +176,10 @@ class AgentService:
                     prompt=state["request"]["prompt"],
                     outcome=result.status,
                     summary=self._summarize(state, result),
-                    # 只有正常结束的回复中的提议才等待用户确认
-                    offer=state.get("offer") if result.status == "completed" else None,
+                    # 回答或失败说明中的提议等待用户确认，等待补充和取消时没有提议
+                    offer=state.get("offer")
+                    if result.status in ("completed", "failed")
+                    else None,
                     created_at=datetime.now(timezone.utc),
                 )
             )
@@ -198,7 +200,6 @@ class AgentService:
             actions=state["actions"] if deliver else [],
             answer=state.get("answer"),
             clarification=state.get("clarification") if waiting else None,
-            failure_reason=state.get("failure_reason"),
         )
 
     async def stream(self, thread_id, payload, session_id, user_id=None):