21-Jan-2026 — add image migration from external hosts to S3 ref: #126
- Add admin tool to scan site content for images hosted on external websites
- Auto-discover external hosts from albums, pages, walks and social events
- Allow selection of specific images to migrate with thumbnail previews
- Support optional auto-resize during migration to reduce storage usage
- Place album images in their correct album folder automatically
- Show real-time progress with detailed activity logging
- Add clickable links to source pages and albums from scan results