- Add draft management functions to app.js (saveDraft, loadDraft, clearDraft, getDraftTimestamp)
- Implement draft auto-save in chat that saves every 2 seconds after typing stops
- Show draft restoration banner on page load if draft exists and is less than 7 days old
- Display draft age with "X minutes/hours/days ago" format
- Add Restore and Discard buttons to draft indicator
- Clear draft automatically after successfully sending a message
- Add draft indicator styles matching beige/blue/pink theme with cyan restore button
- Support dark mode with appropriate color adjustments
- Draft indicator slides in from top with smooth animation
Draft key format: draft_chat_{boardId} for per-board draft storage.
Joca
e76049a353
