Port upstream PR #234 to fork main:
- New feature:status module (SatStatusScreen, SatStatusViewModel)
- New AmSatRepository + IAmSatRepository + SatStatus models
- RemoteSource: AMSAT API methods (getAmSatCatalog, getAmSatReports)
- MainContainer/IMainContainer: DI injection
- MainTheme: AMSAT status colors (tertiary slots)
- Chinese translations added for all AMSAT strings
- 26 unit tests passing
Note: navigation entry not included — upstream PR #234 intentionally
left it out pending UI restructuring. Add AMSAT to your nav bar or
menu as desired.
Port satlover.de dual-station pass matching feature:
- New feature/mutual module with mutual pass data model
- MutualViewModel: compute overlapping passes for two stations
- ElevationCurveChart: Canvas-based dual elevation curve with drag
- MutualScreen: input form + results with expandable cards
- Navigation: add Mutual tab to bottom navigation bar
- i18n: add Chinese/English strings for new feature