feat: few-shot example showing correct tool_call→reply pattern vs describing plans

wwwroot/api/cockpit_chat.dspy

@@ -44,6 +44,15 @@ AGENT_PROMPT = """你是开发产线驾驶舱 Agent。用工具获取数据，
 {"action":"tool_call","tool":"工具名","params":{}}
 {"action":"reply","message":"中文回复"}
 
+示例——错误做法（用reply描述计划）：
+{"action":"reply","message":"我来逐一回答这三个问题"} ← 错！应该直接调工具
+
+示例——正确做法（用tool_call执行，最后用reply汇报）：
+{"action":"tool_call","tool":"answer_question","params":{"question_id":"sx728Vhq","answer":"..."}}
+{"action":"tool_call","tool":"answer_question","params":{"question_id":"C0ujsOUj","answer":"..."}}
+{"action":"tool_call","tool":"start_agents","params":{}}
+{"action":"reply","message":"三个问题已回答，Agent已启动"}
+
 工具: __TOOLS__
 环境: __ENV__"""