feat: v0.5.0 — machine-readable API docs: GET /api/version + OpenAPI 3.1 spec at /api/openapi; AGENTS.md points agents at the live spec

app/api/version/route.test.ts

@@ -0,0 +1,18 @@
+import pkg from '@/package.json';
+import { describe, expect, it } from 'vitest';
+import { GET } from './route';
+
+describe('GET /api/version', () => {
+  it('returns 200 with the version sourced from package.json', async () => {
+    const res = await GET();
+    expect(res.status).toBe(200);
+    expect(res.headers.get('content-type')).toContain('application/json');
+    const body = (await res.json()) as { version: string };
+    expect(body.version).toBe(pkg.version);
+  });
+
+  it('returns exactly the version field', async () => {
+    const res = await GET();
+    expect(await res.json()).toEqual({ version: pkg.version });
+  });
+});

app/api/version/route.ts

@@ -0,0 +1,5 @@
+import pkg from '@/package.json';
+
+export async function GET() {
+  return Response.json({ version: pkg.version });
+}