- New /api/game-screenshots route handles GET (list), POST (upload), and DELETE (remove single file)
- Screenshots stored in a screenshots/ subfolder inside each game directory
- Images converted to JPEG via Sharp on upload, named shot-{timestamp}.jpg
- Modal shows a horizontal scrollable strip of 16:9 thumbnail tiles
- Hover a tile to reveal a delete button; uploading placeholders appear per in-flight upload
- Dashed + tile triggers multi-file picker for batch uploads
- Click any thumbnail to open a full-screen lightbox with prev/next arrows, counter, and keyboard nav (←/→/Esc)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>