Change `00` to `0` in quadrant check to avoid confusion with octal syntax. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Implement DSC message decoding (Distress, Urgency, Safety, Routine) - Add MMSI country identification via MID lookup - Integrate position extraction and map markers for distress alerts - Implement device conflict detection to prevent SDR collisions with AIS - Add permanent storage for critical alerts and visual UI overlays