fix(security): P1/P2 审计修复 + JWT HttpOnly Cookie 双模认证 + 限流

- P0/P1 审计修复: 滑块验证码不再下发 x_position/成败即销毁 key、
  user-login 补失败计数+滑块门控、限流标识改 X-Real-IP、
  百度翻译 appkey 环境化、ChangeEmail/ChangePhone 补调 avalidate、
  logs/tasks.py Count(filter=Q) 修复、chat 收藏 SSRF 内网黑名单
- P1 #6/7: token_blacklist + ROTATE_REFRESH_TOKENS 开启,
  /user/token/refresh/ 挂载
- #2 JWT HttpOnly Cookie 双模认证: user/cookie_auth.py 种/清 Cookie,
  user/authentication.py CookieOrHeaderJWTAuthentication(Bearer 优先/_COOKIE 兜底),
  user/views/token.py CookieTokenRefreshView + UserLogoutAPIView(/user/logout/),
  create_standardized_response 自动对含 token 的响应种 Cookie,
  异步视图内 RefreshToken.for_user 全部 sync_to_async 包裹(修 SynchronousOnlyOperation 500),
  WS ChatConsumer 优先读 Cookie token
- P2 #11 限流: utils/rate_limit.py 固定窗口频控,
  shorturl 生成 匿名10次/分+登录60次/分, 邮箱验证码 同邮箱60s1次+同IP10次/10min,
  登录/注册验证码 错5次作废+成功即销毁防重放, 换绑邮箱/手机 同步落地,
  urls.py 补挂 shorturl 路由(此前 404)

user/views/token.py

@@ -0,0 +1,68 @@
+from rest_framework_simplejwt.views import TokenRefreshView
+from rest_framework_simplejwt.tokens import RefreshToken
+from rest_framework.response import Response
+from rest_framework import status
+from adrf.views import APIView
+from rest_framework.permissions import AllowAny
+from asgiref.sync import sync_to_async
+from drf_yasg.utils import swagger_auto_schema
+from chunyu_project.common_schemas import success_response
+from utils.response_codes import create_standardized_response
+from ..cookie_auth import set_auth_cookies, clear_auth_cookies
+
+
+class CookieTokenRefreshView(TokenRefreshView):
+    """
+    双模 Token 刷新端点：
+    - 支持从请求体 { refresh: '...' } 获取（移动端/API）
+    - 也支持从 HttpOnly Cookie 获取 refresh_token（Web 端）
+    - 刷新成功后，自动将新 access 与 refresh 写入 HttpOnly Cookie
+    """
+    def post(self, request, *args, **kwargs):
+        # 若请求体中未传递 refresh，尝试从 Cookie 自动填充
+        has_refresh_in_body = bool(request.data.get('refresh')) if hasattr(request, 'data') and request.data else False
+        if not has_refresh_in_body and 'refresh_token' in request.COOKIES:
+            data = request.data.copy() if hasattr(request.data, 'copy') else dict(request.data or {})
+            data['refresh'] = request.COOKIES['refresh_token']
+            request._full_data = data
+
+        response = super().post(request, *args, **kwargs)
+        if response.status_code == status.HTTP_200_OK and isinstance(response.data, dict):
+            access = response.data.get('access')
+            refresh = response.data.get('refresh')
+            set_auth_cookies(response, access_token=access, refresh_token=refresh)
+        return response
+
+
+class UserLogoutAPIView(APIView):
+    """
+    用户登出端点：清除客户端 HttpOnly Cookie，并将 refresh token 放入黑名单（若有）
+    """
+    permission_classes = [AllowAny]
+
+    @swagger_auto_schema(
+        tags=['认证'],
+        operation_summary='退出登录',
+        operation_description='清除 HttpOnly Cookie 并拉黑 refresh token',
+        responses={200: success_response},
+    )
+    async def post(self, request):
+        refresh = request.data.get('refresh') if hasattr(request, 'data') and request.data else None
+        if not refresh:
+            refresh = request.COOKIES.get('refresh_token')
+
+        if refresh:
+            def _blacklist(r):
+                try:
+                    RefreshToken(r).blacklist()
+                except Exception:
+                    pass
+            await sync_to_async(_blacklist)(refresh)
+
+        response = create_standardized_response(
+            data={'logged_out': True},
+            message='退出成功',
+            status_code=status.HTTP_200_OK
+        )
+        clear_auth_cookies(response)
+        return response