fix: 移除 /merchant-staff/me 每次请求全量同步角色权限，修复 4s 卡顿拖垮 worker

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

merchant_ops/views_staff.py

@@ -84,6 +84,7 @@ class StaffBindView(APIView):
             shangjia = UserShangjia.query.filter(user__UserUID=inv.merchant_id).first()
             if ctx and shangjia:
                 ctx['merchant_display'] = {'nicheng': shangjia.nicheng, 'merchant_id': inv.merchant_id}
+            ensure_merchant_roles(inv.merchant_id)
             audit_staff(member, 'STAFF_BIND', request, resource_id=invite_code)
             return Response({'code': 0, 'msg': '绑定成功', 'data': {'staff_context': ctx}})
         except MerchantStaffInvite.DoesNotExist:
@@ -101,9 +102,6 @@ class StaffMeView(APIView):
         if not ctx:
             return Response({'code': 404, 'msg': '非子客服身份', 'data': None})
         member = get_active_staff_member(request.user)
-        ensure_merchant_roles(member.merchant_id)
-        member.refresh_from_db()
-        ctx = resolve_staff_context(request.user)
         shangjia = UserShangjia.query.filter(user__UserUID=member.merchant_id).first()
         ctx['merchant_display'] = {
             'nicheng': shangjia.nicheng if shangjia else '',