Core BLE system:
- BLEManager: Real BLE device scanning and connection (iOS/Android)
- MockBLEManager: Simulator-safe mock for development
- BLEContext: React context for BLE state management
- BLEProvider: Added to app/_layout.tsx
Bluetooth permissions:
- iOS: NSBluetoothAlwaysUsageDescription, NSBluetoothPeripheralUsageDescription
- Android: BLUETOOTH, BLUETOOTH_ADMIN, BLUETOOTH_CONNECT, BLUETOOTH_SCAN, ACCESS_FINE_LOCATION
Dependencies:
- react-native-ble-plx@3.5.0
- expo-device@8.0.10
- react-native-base64@0.2.2
Simulator support:
- Auto-detects iOS simulator via expo-device
- Falls back to MockBLEManager with fake devices
- No crashes or permission errors in development
