feat: TTS timestamps + duration probe, gallery/media tile UI updates, project films routing

feat: datasets registry, sidebar route sync, Generate pre-fill from character page

Cleanup env/config, add LoRA training page, consolidate systemd service

Projects pipeline: shot subtitles, scene settings, character rename, gitignore cleanup

Add Studio generation and project UI

Add AMD gallery training status UI

Add AI Toolkit training setup and live job progress