Add 'Open in new tab' buttons for tiling preview and tissue mask overlay

Set spacing_at_level_0=0.5 for bundled slide and skip broken-spacing check

Re-add wsi.tiff via Git LFS

Track WSI files with Git LFS

Replace bundled slide with hs2p debug WSI

UI polish: narrow summary panel, tighter cards, shortened disclaimer

Remove fixed image height to eliminate black letterbox bars

Add disclaimer about HSV-based tissue segmentation and H&E assumption

Fix file upload freezing by removing duplicate wsi_upload in toggle outputs

Handle zero-tile result from write_tiling_preview returning None

Fix import: rename WholeSlide to SlideSpec to match updated hs2p API

Improve error handling: user-facing errors, spacing override, broken metadata detection

Switch bundled slide and unify segmentation pipeline

Fix Dockerfile and tissue mask overlay

Replace standalone tissue segmentation script with in-memory HSV segmentation

Remove stale demo source reference

Initial commit: hs2p interactive tiling demo