feat(web): 添加拓扑图页面和相关组件

feat(csms): 添加获取当前连接状态的API
feat(csms): 添加获取当前活动OCPP WebSocket连接的接口
deps(web): 添加@xyflow/react依赖

apps/web/app/dashboard/topology/topology-client.tsx

@@ -0,0 +1,18 @@
+"use client";
+
+import dynamic from "next/dynamic";
+
+const TopologyFlow = dynamic(() => import("./topology-flow"), {
+  ssr: false,
+  loading: () => (
+    <div className="flex flex-1 items-center justify-center text-muted text-sm">加载拓扑图…</div>
+  ),
+});
+
+export default function TopologyClient() {
+  return (
+    <div style={{ width: "100%", height: "100%" }}>
+      <TopologyFlow />
+    </div>
+  );
+}