fix: 终审修复——health 断言精确化、config 注释修正

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

test/unit/health.test.ts

@@ -6,6 +6,7 @@ vi.mock('../../src/shared/bus/nats', () => ({
 }));
 
 import { buildApp } from '../../src/app/app';
+import { config } from '../../src/shared/config';
 
 describe('health', () => {
   it('nats 探活 ok（mock）时返回 200', async () => {
@@ -17,7 +18,9 @@ describe('health', () => {
       checks: Record<string, string>;
     };
     expect(body.ok).toBe(true);
-    expect(body.service).toMatch(/^bpos-service-/);
+    expect(body.service).toBe('bpos-service-gateway');
+    expect(config.port).toBe(8800);
+    expect(config.keycloak.clientId).toBe('api-gateway');
     expect(body.checks['nats']).toBe('ok');
   });
 });