- Add isProductionEnvironment() check to prevent YOLO mode bypass
- Log warning when YOLO mode request is blocked in production
- Fall back to process.env.NODE_ENV when config service returns undefined
- Add comprehensive tests for production blocking behavior
SECURITY: YOLO mode bypasses all quality gates which is dangerous in
production environments. This change ensures quality gates are always
enforced when NODE_ENV=production.
Refs #338
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>