fix: remove test workflow and suppress email errors in tests

- Remove test-harbor-secrets.yml workflow (no longer needed)
- Mock email service in meal-plans.routes.real.test.ts to prevent actual email sending
- Prevents 'Failed to send verification email' errors in CI

This eliminates email SMTP errors that appear during registration in integration tests

packages/api/src/routes/meal-plans.routes.real.test.ts

@@ -1,8 +1,14 @@
-import { describe, it, expect, beforeAll, afterAll, beforeEach } from 'vitest';
+import { describe, it, expect, beforeAll, afterAll, beforeEach, vi } from 'vitest';
 import request from 'supertest';
 import app from '../index';
 import prisma from '../config/database';
 
+// Mock email service to prevent actual email sending in tests
+vi.mock('../services/email.service', () => ({
+  sendVerificationEmail: vi.fn().mockResolvedValue(undefined),
+  sendPasswordResetEmail: vi.fn().mockResolvedValue(undefined),
+}));
+
 describe('Meal Plans Routes - Real Integration Tests', () => {
   let authToken: string;
   let testUserId: string;