## Stack

- **Language:** TypeScript (Chrome Extension, Manifest V3)
- **Key deps:** `@binect/js` (local `file:../binect-js` SDK — sibling repo must be present to build); Web Crypto API (AES-GCM credentials); Chrome APIs (`downloads`, `storage`, `alarms`, `activeTab`)
- **Build/test tooling:** Webpack, Jest, ESLint, `tsc` (type-check only)

## Dev Commands

```bash
# Install dependencies
npm install

# Build (production bundle → dist/)
npm run build

# Watch build for development
npm run dev

# Run tests
npm test            # jest
npm run test:watch  # jest --watch

# Lint / type check
npm run lint        # eslint src/**/*.{js,ts}
npm run lint:fix    # eslint --fix
npm run type-check  # tsc --noEmit
```

Load the unpacked extension from `dist/` via `chrome://extensions` (Developer mode) to test in-browser.