refactor backend module architecture

app/sdk/network.py

@@ -0,0 +1,19 @@
+"""插件常用的 HTTP、地址和站点处理工具。"""
+
+from app.domain.site import SiteUtils
+from app.infrastructure.network import IpUtils
+from app.foundation.url import UrlUtils
+from app.foundation.http import AsyncRequestUtils, RequestUtils
+from app.integrations.location import WebUtils
+from app.security.url import SecurityUtils
+
+
+__all__ = [
+    "AsyncRequestUtils",
+    "IpUtils",
+    "RequestUtils",
+    "SecurityUtils",
+    "SiteUtils",
+    "UrlUtils",
+    "WebUtils",
+]