fix(cli): read version from file

tests/version.test.ts

@@ -0,0 +1,12 @@
+import { readFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { describe, expect, it } from 'vitest';
+import { getCliVersion } from '../src/lib/version.js';
+
+describe('getCliVersion', () => {
+  it('matches package.json version when available', () => {
+    const raw = readFileSync(fileURLToPath(new URL('../package.json', import.meta.url)), 'utf8');
+    const pkg = JSON.parse(raw) as { version?: unknown };
+    expect(getCliVersion()).toBe(pkg.version);
+  });
+});