MLS Grid media URLs expire after ~24 hours. Instead of running
scheduled syncs, this adds on-demand refresh when images are requested:
- Add is_url_expired() to parse expires timestamp from media URLs
- Add refresh_media_urls() to fetch fresh URLs from API for one listing
- Add get_property_media() API method using ListingId filter
- Image endpoint checks URL expiration before fetching
- If expired, refreshes URLs from API then proceeds with fetch
This is more efficient than scheduled full syncs because:
- Only refreshes URLs for listings actually being viewed
- Zero overhead for unviewed listings
- Scales naturally with traffic
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
