Implement comprehensive Web Bluetooth API integration for the web admin:
- Device scanning with requestDevice and filter by WP_ prefix
- GATT connection with service/characteristic discovery
- Command protocol matching mobile app (PIN unlock, WiFi config)
- WiFi network scanning and configuration via BLE
- Connection state management with event listeners
- TypeScript type definitions for Web Bluetooth API
- Unit tests with 26 test cases covering core functionality
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Co-Authored-By: Claude <noreply@anthropic.com>
