refactor: flatten monorepo into standalone project

src/routes/api/health.ts

@@ -0,0 +1,27 @@
+import { createFileRoute } from '@tanstack/react-router'
+import { name, version } from '@/../package.json'
+
+const createHealthResponse = (): Response =>
+  Response.json(
+    {
+      status: 'ok',
+      service: name,
+      version,
+      timestamp: new Date().toISOString(),
+    },
+    {
+      status: 200,
+      headers: {
+        'cache-control': 'no-store',
+      },
+    },
+  )
+
+export const Route = createFileRoute('/api/health')({
+  server: {
+    handlers: {
+      GET: async () => createHealthResponse(),
+      HEAD: async () => new Response(null, { status: 200 }),
+    },
+  },
+})