- New BootstrapDownloadDialog accessible from Settings page
- Stops daemon before download, prevents auto-restart during bootstrap
- Confirm/Downloading/Done/Failed states with progress display
- Mirror support (bootstrap2.dragonx.is)
- Add bootstrap_downloading_ flag to prevent tryConnect() auto-reconnect
- Right-align Download Bootstrap + Setup Wizard buttons in settings
- Add 100 missing i18n keys to all 8 language files (de/es/fr/ja/ko/pt/ru/zh)
- Includes bootstrap, explorer, mining benchmark, transfer, delete blockchain,
force quit, address label, and settings section translations
- Update add_missing_translations.py with new translation batch
077f9a7403