feat : Add version settings and API endpoint to display application version

src/app/api/version/route.ts

@@ -0,0 +1,35 @@
+import { readFile } from 'fs/promises';
+import { join } from 'path';
+import { parseRequest } from '@/lib/request';
+import { json } from '@/lib/response';
+
+let cachedVersion: string | null = null;
+
+async function getVersion(): Promise<string> {
+  if (cachedVersion) {
+    return cachedVersion;
+  }
+
+  try {
+    const packageJsonPath = join(process.cwd(), 'package.json');
+    const data = await readFile(packageJsonPath, 'utf-8');
+    const packageJson = JSON.parse(data);
+    cachedVersion = packageJson.version || 'unknown';
+  } catch (error) {
+    cachedVersion = 'unknown';
+  }
+
+  return cachedVersion;
+}
+
+export async function GET(request: Request) {
+  const { error } = await parseRequest(request, null, { skipAuth: true });
+
+  if (error) {
+    return error();
+  }
+
+  const version = await getVersion();
+
+  return json({ version });
+}