feat: bootstrap NestJS backend with auth, stations, users, health-check, now-playing

.env.example

@@ -0,0 +1,25 @@
+# Database
+DATABASE_URL=postgresql://radiola:radiola_pass@localhost:5432/radiola?schema=public
+
+# Redis
+REDIS_URL=redis://localhost:6379
+
+# JWT
+JWT_SECRET=your-super-secret-jwt-key-change-in-production
+JWT_EXPIRES_IN=7d
+
+# SMTP (for magic links)
+SMTP_HOST=smtp.example.com
+SMTP_PORT=587
+SMTP_USER=noreply@example.com
+SMTP_PASS=your-smtp-password
+MAIL_FROM=radiOLA <noreply@example.com>
+
+# App
+FRONTEND_URL=https://radiola.app
+PORT=3000
+
+# Postgres (for docker-compose)
+POSTGRES_USER=radiola
+POSTGRES_PASSWORD=radiola_pass
+POSTGRES_DB=radiola