fix: 日志页 /admin/logs 自引用不记录（5s 轮询刷屏）

app/http_log.py

@@ -257,7 +257,8 @@ class RequestResponseLogMiddleware(BaseHTTPMiddleware):
     """记录请求 header/body、响应 body、耗时、usage；跳过 ``/healthz``。"""
 
     async def dispatch(self, request: Request, call_next: Any) -> Response:
-        if request.url.path in ("/healthz", "/favicon.ico"):
+        if request.url.path in ("/healthz", "/favicon.ico", "/admin/logs"):
+            # /admin/logs 是日志页自引用：记录它会刷屏（每 5s 一条大 body）
             return await call_next(request)
 
         settings = _settings_from_request(request)