feat: 投诉工单正规化（介入/牵连提现拦截，仅俱乐部开关）

支持被投诉对象、平台介入、协商中状态与组长投诉；提现硬拦含管事向上牵连组长，默认仅 lxs 开启。

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

users/views/tixian.py

@@ -402,8 +402,15 @@ class TixianShenqingView(APIView):
 
             ok, elig_msg, extra = validate_withdraw_eligibility(user_main, leixing, jine)
             if not ok:
-                return Response({'code': 8, 'msg': elig_msg},
-                                status=status.HTTP_400_BAD_REQUEST)
+                body = {'code': 8, 'msg': elig_msg}
+                if (extra or {}).get('code') == 'COMPLAINT_BLOCK_WITHDRAW':
+                    body['data'] = {
+                        'tab': extra.get('tab') or 'received',
+                        'reason': extra.get('reason') or '',
+                        'count': extra.get('count') or 0,
+                        'code': 'COMPLAINT_BLOCK_WITHDRAW',
+                    }
+                return Response(body, status=status.HTTP_400_BAD_REQUEST)
 
             # 3. 根据提现类型扣款（资格已在 validate_withdraw_eligibility 校验）
             nicheng = extra.get('nicheng', '')