重构应用程序架构，添加 OpenIM SDK 初始化和引导逻辑

providers/app-bootstrap-provider.tsx

@@ -0,0 +1,9 @@
+import { PropsWithChildren } from "react";
+
+import { useOpenIMBootstrap } from "@/features/im/hooks/use-openim-bootstrap";
+
+export function AppBootstrapProvider({ children }: PropsWithChildren) {
+  useOpenIMBootstrap();
+
+  return children;
+}