Jannis
3fc25c083b
The BMS only allows one simultaneous BLE connection. Keeping a persistent connection blocked the mobile app from connecting at all. Changes: - BmsBluetoothHandler: replace connect()/disconnect()/request() public API with a single poll() method that owns the full connect→read→disconnect lifecycle. Connection is held only for the duration of one data fetch. - Coordinator: gutted connection-state management — _async_update_data now just calls handler.poll() and processes results. No reconnect loop needed. - Poll interval defaults: 15s default, 10s min, 300s max. The BLE connect overhead (~2s) makes sub-10s intervals impractical. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>