core/
├── manifest.json              # Extension configuration (Manifest V3)
├── background.js              # Service worker (message handling, detection)
├── content.js                 # Content script (ISOLATED world - orchestration)
├── content-main-world.js      # JS hooks installer (MAIN world - API interception)
├── popup.js/html/css          # Extension popup UI
│
├── detectors/                 # JSON detector definitions
│   ├── antibot/              # Cloudflare, Akamai, DataDome, Imperva, etc.
│   ├── captcha/              # reCAPTCHA, hCaptcha, FunCaptcha, GeeTest, Turnstile
│   ├── fingerprint/          # Canvas, WebGL, Audio, Performance (21 detectors)
│   └── index.json            # Category configuration
│
├── modules/                   # Core managers (singleton pattern)
│   ├── detection-engine-manager.js    # Detection orchestration & hook batching
│   ├── detector-manager.js            # Detector CRUD operations
│   ├── category-manager.js            # Category metadata & badge colors
│   ├── confidence-manager.js          # Confidence score calculations
│   ├── storage-manager.js             # Chrome storage wrapper with caching
│   ├── notifi