清空，重构

core/middleware/audit.py

@@ -1,9 +0,0 @@
-class AuditMiddleware:
-    """审计日志中间件骨架。"""
-
-    def __init__(self, get_response):
-        self.get_response = get_response
-
-    def __call__(self, request):
-        response = self.get_response(request)
-        return response