增强 8910 日志盯盘与联调可读性：本机落盘 info/error、bat 入口，出站与 echo 打 reply 预览，部署强制 UTF-8。

Co-authored-by: Cursor <cursoragent@cursor.com>

inquiry-agent/agent/channel/outbox/sender.py

@@ -98,7 +98,8 @@ class WeComAppClient:
                     self._token_expire_at = 0.0
             logger.warning("企微发送失败 errcode=%s errmsg=%s", errcode, errmsg)
             return WeComSendResult(ok=False, errcode=errcode, errmsg=errmsg, raw=data)
-        logger.info("企微发送成功 touser=%s", touser)
+        preview = content if len(content) <= 200 else (content[:200] + "…")
+        logger.info("企微发送成功 touser=%s reply=%s", touser, preview)
         return WeComSendResult(ok=True, errcode=0, errmsg=errmsg, raw=data)
 
     def _get_token(self) -> str:

inquiry-agent/agent/handlers/echo_text.py

@@ -50,9 +50,12 @@ def handle_echo_text(
         content=body,
         dedupe_key=dedupe,
     )
+    # 联调需要能在 err 日志里对上企微气泡；正文截断避免超长刷屏
+    preview = body if len(body) <= 200 else (body[:200] + "…")
     logger.info(
-        "echo 已排队 outbox ok=%s info=%s sender=%s",
+        "echo 已排队 outbox ok=%s info=%s sender=%s reply=%s",
         ok,
         info,
         message.sender_id,
+        preview,
     )