Claude sub-agents, PRD, MCP improvements (#359)

1. Added Claude Code sub-agents
2. Added PRD tool to MCP Server
3. Added MCP Server UI to Dev Tools
4. Improved MCP Server Database Tool
5. Updated dependencies

apps/dev-tool/app/mcp-server/prds/[filename]/page.tsx

@@ -0,0 +1,44 @@
+import { Metadata } from 'next';
+
+import { notFound } from 'next/navigation';
+
+import { loadPRDPageData } from '../../_lib/server/prd-page.loader';
+import { PRDDetailView } from './_components/prd-detail-view';
+
+interface PRDPageProps {
+  params: Promise<{
+    filename: string;
+  }>;
+}
+
+export async function generateMetadata({
+  params,
+}: PRDPageProps): Promise<Metadata> {
+  const { filename } = await params;
+
+  try {
+    const prd = await loadPRDPageData(filename);
+
+    return {
+      title: `${prd.introduction.title} - PRD`,
+      description: prd.introduction.overview,
+    };
+  } catch {
+    return {
+      title: 'PRD Not Found',
+    };
+  }
+}
+
+export default async function PRDPage({ params }: PRDPageProps) {
+  const { filename } = await params;
+
+  try {
+    const prd = await loadPRDPageData(filename);
+
+    return <PRDDetailView filename={filename} prd={prd} />;
+  } catch (error) {
+    console.error('Failed to load PRD:', error);
+    notFound();
+  }
+}