test: verify request references on database failures

src/habits/resilience.test.ts

@@ -5,7 +5,7 @@ beforeEach(() => { f = fixture(); }); afterEach(() => f.close());
 test('failed revision writes roll back the habit atomically and do not expose database errors', async () => {
   f.sqlite.exec("CREATE TRIGGER reject_revision BEFORE INSERT ON habit_revisions BEGIN SELECT RAISE(ABORT, 'private database detail'); END");
   const response = await f.request('/habits', 'POST', { name: 'Rollback', method: 'manual' });
-  expect(response.status).toBe(500); expect(await response.json()).toEqual({ error: 'Internal server error' });
+  expect(response.status).toBe(500); expect(await response.json()).toEqual({ error: 'Internal server error', requestId: response.headers.get('x-request-id') });
   expect((await f.json('/habits')).habits).toHaveLength(0);
 });
 
@@ -20,7 +20,7 @@ test('creation saves color atomically and never puts presentation into requireme
   f.sqlite.exec("CREATE TRIGGER reject_color BEFORE INSERT ON habit_calendar_settings BEGIN SELECT RAISE(ABORT, 'private color detail'); END");
   const response = await f.request('/habits', 'POST', { name: 'Rollback color', method: 'manual', color: '#426582' });
   expect(response.status).toBe(500);
-  expect(await response.json()).toEqual({ error: 'Internal server error' });
+  expect(await response.json()).toEqual({ error: 'Internal server error', requestId: response.headers.get('x-request-id') });
   expect((await f.json('/habits')).habits).toHaveLength(3);
 });
 test('edits save color with requirements atomically, preserving history and other settings', async () => {