feat(api): app NestJS con configuración validada y health check

Nest 12 (ESM, vitest, oxlint). El .env se valida con zod al arrancar;
prefijo global /api, CORS configurable y GET /api/health.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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GeorgeandClaude Sonnet 5.5 committed 2026-10-13 18:13:52 -05:00
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import { validateEnv } from './env.schema.js';
describe('validateEnv', () => {
it('aplica valores por defecto', () => {
const env = validateEnv({});
expect(env.PORT).toBe(3000);
expect(env.CORS_ORIGINS).toEqual([]);
expect(env.LOG_LEVEL).toBe('log');
});
it('convierte PORT y separa CORS_ORIGINS', () => {
const env = validateEnv({ PORT: '8080', CORS_ORIGINS: 'https://a.local, https://b.local' });
expect(env.PORT).toBe(8080);
expect(env.CORS_ORIGINS).toEqual(['https://a.local', 'https://b.local']);
});
it('rechaza valores inválidos con un mensaje claro', () => {
expect(() => validateEnv({ PORT: 'abc' })).toThrow(/PORT/);
});
});