PORT=3000 DB_HOST=localhost DB_PORT=5432 DB_USER=root DB_PASSWORD= DB_NAME=helpyourneighbour JWT_SECRET=fallback_secret_key_for_dev RATE_LIMIT_WINDOW_MS=900000 RATE_LIMIT_MAX_REQUESTS=100 RATE_LIMIT_AUTH_WINDOW_MS=300000 RATE_LIMIT_AUTH_MAX_REQUESTS=5