Sub Sensei

Improved Audio, Subtitle Reliability & App Stability 1. Native TTS Audio Lifecycle Reliability Fix 2. Lost Audio / Speech Deadlock Prevention 3. Subtitle Speech Queue & Pending-Owner Recovery 4. Final Gemini-Repaired Subtitle Preservation Fix 5. Learning System Firestore Write Stability 6. Model Training Input Persistence & Single-Flight Protection 7. Session Firestore Single-Flight Persistence Fix 8. History Firestore Save Reliability Fix 9. History Local Cache-Miss Recovery 10. Firestore Stuck-Write & Memory Pressure Protection 11. Firestore Session Pre-Native Write Failure Fix 12. Firestore Pending-Write / Backend Acknowledgment Improvements 13. Core Data Persistence Queue Protection 14. Camera Preview Main-Queue Stability Improvements 15. Runtime Memory / OOM Stability Improvements 16. Subtitle Repair & Speech Ownership Reliability Improvements 17. Long-Session Runtime Stability Improvements 18. Firestore Diagnostic Logging Performance Cleanup