fix: update deprecated test to expect 410 Gone status

Author: jotel-dev

backend/tests/deprecated.test.ts

@@ -5,22 +5,26 @@ import app from '../src/app.js';
 // This file tests deprecated endpoints WITHOUT any Prisma mocking
 // so the real route handlers respond directly without interference.
 
-describe('Removed unversioned routes', () => {
-    it('POST /streams returns 404 Not Found', async () => {
+describe('Deprecated route responses', () => {
+    it('POST /streams returns 410 Gone', async () => {
         const response = await request(app)
             .post('/streams')
             .send({})
             .set('Accept', 'application/json');
 
-        expect(response.status).toBe(404);
+        expect(response.status).toBe(410);
+        expect(response.body.deprecated).toBe(true);
+        expect(response.body.migration).toMatchObject({ old: '/streams', new: '/v1/streams' });
     });
 
-    it('POST /events returns 404 Not Found', async () => {
+    it('POST /events returns 410 Gone', async () => {
         const response = await request(app)
             .post('/events')
             .send({})
             .set('Accept', 'application/json');
 
-        expect(response.status).toBe(404);
+        expect(response.status).toBe(410);
+        expect(response.body.deprecated).toBe(true);
+        expect(response.body.migration).toMatchObject({ old: '/events', new: '/v1/events' });
     });
 });