Thomas Hallock f29126bd67 Virtualize vision training image grid and fix selection behavior ...

- Add virtualization using @tanstack/react-virtual to handle thousands
  of training images without loading all at once
- Fix selection behavior: normal click now replaces selection (was toggle),
  shift+click adds range to selection
- Add independent panel scrolling with minHeight: 0 for flex layout
- Use ResizeObserver to dynamically calculate items per row

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-01-19 08:55:51 -06:00

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Virtualize vision training image grid and fix selection behavior

2026-01-19 08:55:51 -06:00