- Fallback: name
- Technical identity: still name
### What changed
- Added account display helpers and display_name state in user model:
- flutter/lib/models/user_model.dart:16
- Account/logout label now uses display_name (@name) when both exist:
- flutter/lib/mobile/pages/settings_page.dart:689
- flutter/lib/desktop/pages/desktop_setting_page.dart:2016
- flutter/lib/desktop/pages/desktop_setting_page.dart:2135
- Desktop Account info now shows both when applicable:
- Display Name: ...
- Username: ...
- flutter/lib/desktop/pages/desktop_setting_page.dart:2039
- Previously done group-list behavior remains:
- group user list displays display_name with name fallback
- flutter/lib/common/widgets/my_group.dart:187
- Persistence path for display_name remains enabled (including group cache/submodule field):
- libs/hbb_common/src/config.rs:2347
- src/client.rs:2630
- LoginRequest.my_name now resolves as:
1. OPTION_DISPLAY_NAME (manual override)
2. user_info.display_name
3. user_info.name
4. OS username fallback
1. Rename `Group` tab to `Accessible devices`
2. Add accessible device groups at the top of search list
3. option `preset-device-group-name` and command line `--assign --device_group_name`
Signed-off-by: 21pages <sunboeasy@gmail.com>