The demo pose thumbnails were 160px wide palette PNGs, about 4 KB, shown at up to 210 CSS px
on phones: 195 CSS px x DPR 3 = 585 device px from 160, a 3.6x upscale. They are now 480px
wide (about 2.5x the phone portrait at DPR 3, still 25-70 KB each), generated from
/opt/commons/cast-art/poses by scripts/make-pose-thumbs.mjs, and cover every pose the
catalogue lists for the three demo Minds.
The Ratatoskr demo room gains three long Mind posts with paragraphs, lists and code,
sent with formatted_body like the real Minds' Markdown.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
src/preview-demo answers a demo.invalid homeserver from fixtures through a guarded fetch;
own-origin requests pass, every other origin is refused (fetch, WebSocket, XHR, beacon).
Built in only with VITE_PREVIEW_DEMO=1 and switched on by previewDemo in config.json
(scripts/preview-config.js --demo, run by the dev workflow). Login prefills 'demo'.
Pose art: 24 downscaled thumbnails in preview-demo/poses, copied into dist by the workflow.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
