#976 微信对话同步WebClaw修复 + admin连接时间统一北京时间

1.mirror_to_ai_chat: _uuid→uuid(NameError被except吞了, 对话从未同步到webclaw) 2.im_bot_admin加_beijing_now并替换5处datetime.now()(容器UTC存naive时间前端按+08:00展示错位8小时)

backend/python/app/api/admin/im_bot_admin.py

@@ -14,7 +14,15 @@ import hmac
 import time
 import threading
 import requests
-from datetime import datetime, timedelta
+from datetime import datetime, timedelta, timezone
+
+# #976 全平台统一使用北京时间（容器 UTC，前端按 +08:00 展示）
+_TZ_BEIJING = timezone(timedelta(hours=8))
+
+
+def _beijing_now():
+    """返回 naive 北京时间（容器 UTC 时区下，需显式转）"""
+    return datetime.now(_TZ_BEIJING).replace(tzinfo=None)
 from typing import Optional
 
 from fastapi import APIRouter, Depends, HTTPException, Query
@@ -773,13 +781,13 @@ async def wechat_qrcode_status(qrcode: str = Query(...), user=Depends(get_curren
                         (bot_token, ilink_bot_id, baseurl, status, connected_at, created_at, updated_at)
                         VALUES (:bot_token, :ilink_bot_id, :baseurl, 'connected', :connected_at, :created_at, :updated_at)"""),
                         {"bot_token": bot_token, "ilink_bot_id": ilink_bot_id, "baseurl": baseurl,
-                         "connected_at": datetime.now(), "created_at": datetime.now(), "updated_at": datetime.now()})
+                         "connected_at": _beijing_now(), "created_at": _beijing_now(), "updated_at": _beijing_now()})
                 else:
                     _execute_raw(db, text("""UPDATE im_bot_wechat_account SET
                         bot_token=:bot_token, ilink_bot_id=:ilink_bot_id, baseurl=:baseurl,
                         status='connected', connected_at=:connected_at, updated_at=:updated_at WHERE id=:id"""),
                         {"bot_token": bot_token, "ilink_bot_id": ilink_bot_id, "baseurl": baseurl,
-                         "connected_at": datetime.now(), "updated_at": datetime.now(), "id": _row_to_dict(row)["id"]})
+                         "connected_at": _beijing_now(), "updated_at": _beijing_now(), "id": _row_to_dict(row)["id"]})
                 row = _wechat_row(db)
                 aid = _row_to_dict(row)["id"] if row else 1
                 _start_wechat_receiver(aid)
@@ -821,7 +829,7 @@ async def wechat_disconnect(user=Depends(get_current_user)):
         row = _wechat_row(db)
         if row:
             _execute_raw(db, text("UPDATE im_bot_wechat_account SET bot_token=NULL, status='disconnected', updated_at=:updated_at WHERE id=:id"),
-                          {"updated_at": datetime.now(), "id": _row_to_dict(row)["id"]})
+                          {"updated_at": _beijing_now(), "id": _row_to_dict(row)["id"]})
         return {"success": True, "message": "已断开个人微信连接"}
     except Exception as e:
         raise HTTPException(status_code=500, detail=str(e))

backend/python/app/api/im_bot_user.py

@@ -551,7 +551,7 @@ def _get_or_create_wechat_conv(db: Session, user_id: str) -> str:
     ), {"uid": user_id})
     if rows:
         return _row_to_dict(rows[0])["id"]
-    cid = str(_uuid.uuid4())
+    cid = str(uuid.uuid4())
     now = _beijing_now()
     _execute_raw(db, text(
         "INSERT INTO conversations "
@@ -566,7 +566,7 @@ def _append_ai_message(db: Session, conv_id: str, role: str, content: str, creat
         "INSERT INTO messages (id, conversation_id, role, content, token_used, created_at) "
         "VALUES (:id, :cid, :role, :content, 0, :c)"
     ), {
-        "id": str(_uuid.uuid4()), "cid": conv_id, "role": role,
+        "id": str(uuid.uuid4()), "cid": conv_id, "role": role,
         "content": content, "c": created or _beijing_now(),
     })