- jwt.ts: Use JWT_DOWNLOAD_SECRET instead of JWT_SECRET for download tokens
- audio-formats.ts: Add EBOOK_EXTENSIONS export alongside AUDIO_EXTENSIONS
- request-statuses.ts: New shared COMPLETED_STATUSES constant used across requests API, download route, and RequestCard
- requests/route.ts: Import COMPLETED_STATUSES; strip filePath from audiobook in API response
- download/route.ts: Import format/status constants; add archiver dependency and replace adm-zip with streaming archiver for multi-file zips
- RequestCard.tsx: Use shared COMPLETED_STATUSES constant
Extend multi-download-client support to include Transmission and NZBGet and introduce per-client custom download paths. Adds protocol mapping and new client types, Transmission/NZBGet integration services, API CRUD and validation changes, UI components/modal updates and live path previews, and manager routing by protocol. Includes DB migrations (download_path on download_history, interactive_search_access on users), schema updates, and related processor/service fixes and tests to ensure backward compatibility and proper path resolution.