Release v2.1.0
merge: integrate v2-architecture — PostgreSQL, Celery, strict typing
fix: bug fixes for audio extraction and file size limits
refactor: complete OpenAI integration, extract UI into frontend direc… …tory, and clean main.py
feat: working local WhisperX alignment and Gemini translation pipeline
Release v1.5.0-beta: Public testing milestone
Release v1.4.0: Multi-language subtitle tracks baseline
Release v1.3.1: Database session startup patch
Release version 1.3.0: Subtitle Workstation Update
Release v1.2.0: Generalized Multi-Language Hybrid Sync Pipeline