refactor(repo): consolidate openflare-server to root and move subprojects to internal/apps

- Merge all files inside openflare-server to the repository root directory.
- Relocate agent, relay, and flared subprojects from internal/ to internal/apps/.
- Combine docker-compose files and update build context paths to root.
- Update GitHub workflows and Dockerfiles to refer to new directories and package names.
- Rewrite Go package imports across all files.
- Resolve database renew test race condition and clean up docs.

frontend/app/(main)/nodes/detail/page.tsx

@@ -0,0 +1,23 @@
+import {Suspense} from 'react';
+
+import {Skeleton} from '@/components/ui/skeleton';
+
+import {NodeDetailPageClient} from './page-client';
+
+function NodeDetailPageFallback() {
+  return (
+    <div className="py-6 px-1 space-y-6">
+      <Skeleton className="h-8 w-48" />
+      <Skeleton className="h-10 w-full max-w-xl" />
+      <Skeleton className="h-64 w-full" />
+    </div>
+  );
+}
+
+export default function NodeDetailPage() {
+  return (
+    <Suspense fallback={<NodeDetailPageFallback />}>
+      <NodeDetailPageClient />
+    </Suspense>
+  );
+}