- Stub OverlayViewModel reserves abstraction point
- Stub OverlayView shows 'Overlay deferred' placeholder
- Original OverlayProvider (274 lines) was too tangled:
mixed IPC, GPS forwarding, timers, foreground mgmt
- Will be reimplemented properly when overlay issues are resolved
- Create SpeedometerViewModel in ui/features/speedometer/
- Create thin SpeedometerView in ui/features/speedometer/
- Extract shared SpeedDisplay widget in ui/shared/
- Extract _CompassWidget from old speedometer screen
- Remove all business logic from UI layer
- Move constants from lib/config/ to lib/core/constants/
- Move color themes to lib/core/theme/
- Create LocationData domain model in data/models/
- Create lightweight GpsService in data/services/
- Create LocationRepository in data/repositories/ consolidating
GpsDataManager business logic (GPS stream, staleness, precision)
- Create shared SpeedDisplay widget in ui/shared/
- Defer overlay feature — stubs reserved in ui/features/overlay/
irene