Export/download chat history #353
Description
Allow users to export their chat history as a file (e.g., JSON, TXT, or other formats).
Use cases:
- Local backup/archival
- Data portability
- Compliance/legal record retention
- Sharing conversations externally
User feedback notes:
- JSON format preferred for backups
- Bulk export needed (copy feature exists but isn't bulk)
- API chats can be backed up, but UI chats cannot
- Cross-device sync is nice but users still want local backups
Requested via user feedback.