Serve starts without a required port; REST/WS/UI can scan and switch transports, with BLE live ticks and UART-only OTA.
Co-authored-by: Cursor <cursoragent@cursor.com>
Master can speak the same framed protobuf protocol over NimBLE or UART; goTool gains -ble, ble-rtt, and ble-stream timing checks for ESP-NOW coexistence.
Co-authored-by: Cursor <cursoragent@cursor.com>