Enhanced the downloader backend and frontend to support playlist URLs for video info and downloads. The API now returns structured playlist information, allows selecting specific videos for download, and returns a ZIP file for playlist downloads. Updated OpenAPI types, removed deprecated parameters (start_time, end_time, playlist_items), and improved Content Security Policy handling in nginx. Refactored frontend to handle playlist selection and updated generated API models accordingly.
Introduces .dockerignore, production Dockerfile and nginx config for frontend, and refactors docker-compose.yml for multi-service deployment. Updates backend and frontend code to support public API tagging, improves refund handling, adds test email endpoint, and migrates Orval config to TypeScript. Removes unused frontend Dockerfile and updates dependencies for React Query and Orval.
