fix+feat: CI build fixes and hardware source feature flags

CI fixes:
- ParticleWindView: bounds.lonEast → bounds.northEast.longitude
  (MapLibre 13.x API; lonEast not available as property)
- VesselRegistryFragment: Vessel(id="") and CrewMember(id="") →
  include required name="" so copy() compiles

Hardware source feature flags:
- HardwareSource enum: AIS_RECEIVER, NMEA_INSTRUMENTS
- FeatureFlags: SharedPreferences-backed; all sources default OFF
  (app works phone-only out of the box)
- NavApplication: exposes featureFlags singleton
- SafetyFragment: "HARDWARE DATA SOURCES" card with two MaterialSwitch
  toggles; reads initial state from FeatureFlags; calls
  SafetyListener.onHardwareSourceChanged on change
- AIS_RECEIVER flag:
  - MainViewModel.processAisSentence() / refreshAisFromInternet() skip
    when disabled; onHardwareSourceChanged() clears targets + cpaAlerts
- NMEA_INSTRUMENTS flag:
  - LocationService skips nmeaStreamManager.start() on service launch
    when disabled
  - New ACTION_START_NMEA / ACTION_STOP_NMEA intents allow live toggle
  - MainActivity.onHardwareSourceChanged() sends the appropriate intent

Tests: 102 total, all GREEN (+7 FeatureFlagsTest)

https://claude.ai/code/session_011h2dXbgXg3PesQMmQUNTCW

0 files changed, 0 insertions, 0 deletions