- Replace thin MeshCoreTcpManager facade with a proper MeshCoreTcpConnector
that owns TcpTransportService and the frame subscription, mirroring
MeshCoreUsbManager. The connector no longer holds a raw TcpTransportService
or a _tcpFrameSubscription field.
- Remove hardcoded default host IP from TcpScreen (keep port 5000 hint).
- Disable connect button during scanning state, not just connecting state.
- Fix tcpPortLabel mistranslated as nautical "port/harbor" in de, it, pt,
nl, sv, sk, sl, zh; fix corrupted Slovak tcpPortHint ("5 000" → "5000").
- Remove unused tcpStatus_connecting string from all 15 locale arb files
and all generated app_localizations_*.dart files.
- Add extendedPadding to TCP screen FABs to match USB screen.
- Add Key to connect button; update tests to use byKey and assert
onPressed == null when button is disabled during scanning.
- Implemented TCP transport service for native platforms.
- Added TCP connection screen with input fields for host and port.
- Integrated TCP connection options into the scanner and USB screens.
- Updated localization files for new TCP-related strings.
- Added tests for TCP connection flow and error handling.
- Enhanced USB screen to include TCP connection option.
- Improved layout to ensure no overflow in narrow widths for scanner and USB screens.
