fix: never_cache sync wrapper broke async dispatch - add async_never_cache_dispatch (wallet/login_record/tasks)

utils/async_decorators.py

@@ -0,0 +1,32 @@
+"""
+异步友好的 never_cache 类装饰器
+================================
+替代 `@method_decorator(never_cache, name='dispatch')`。
+
+背景：@method_decorator 生成同步包装器，在 adrf 的 async dispatch 返回的协程上
+调用 add_never_cache_headers 会抛 AttributeError（'coroutine' object has no
+attribute 'has_header'）。本装饰器兼容同步/异步 dispatch，语义与 never_cache 一致。
+
+用法（作为类装饰器）：
+    @async_never_cache_dispatch
+    class WalletBalanceAPIView(APIView):
+        ...
+"""
+import asyncio
+
+from django.utils.cache import add_never_cache_headers
+
+
+def async_never_cache_dispatch(cls):
+    orig_dispatch = cls.dispatch
+
+    async def dispatch(self, request, *args, **kwargs):
+        response = orig_dispatch(self, request, *args, **kwargs)
+        if asyncio.iscoroutine(response):
+            response = await response
+        if response is not None and hasattr(response, "has_header"):
+            add_never_cache_headers(response)
+        return response
+
+    cls.dispatch = dispatch
+    return cls