conductor: tag pushed user messages with [用户消息]

frontends/conductor.py

@@ -492,7 +492,7 @@ class Conductor:
         if kind == "user_message":
             msgs = self._pending = [m for m in chat_messages if m.get("role") == "user" and not m.get("read")]
             if not msgs: return None
-            return "\n\n".join(m["msg"] + "".join(f"\n附件: `{f['path']}`" for f in m.get("files") or [] if f.get("path")) for m in msgs)
+            return "[用户消息]\n" + "\n\n".join(m["msg"] + "".join(f"\n附件: `{f['path']}`" for f in m.get("files") or [] if f.get("path")) for m in msgs)
         running, stopped = pool.counts()
         done_count = sum(1 for e in events if e.get("type") == "subagent_done")
         im_sources = [e.get("source") for e in events if e.get("type") == "im_signal"]