fix: 微信登录接口跳过 JWT 鉴权，避免旧 Token 导致 403

ClubWechatLoginView 设置 authentication_classes=[]，登录请求不再校验 Authorization。

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

jituan/views.py

@@ -49,6 +49,7 @@ class ClubWechatLoginView(APIView):
     POST /jituan/auth/wechat-login
     body: { code, club_id?, app_id? }
     """
+    authentication_classes = []  # 登录不走 JWT，避免旧 Token 触发 403
     throttle_classes = [AnonRateThrottle]
     permission_classes = [AllowAny]