The blank /live (the project lead, 14:3x UK): IgneumDag 2.0.2 painted only from a requestAnimationFrame loop gated on document.hidden and
the IntersectionObserver, so a page that loaded with document.hidden true (the desktop pane, a background tab) and whose embedder
never fired visibilitychange took every push, reported live and never drew a frame. 2.0.3 paints the current picture synchronously
on push, size and theme change; the motion loop alone waits for a visible document and an intersecting canvas. Confirmed headless
on build-2 against the live feed: hidden document 0 lit pixels before, 110,007 after; the never-intersecting observer repaints
on every push. Known-failed test tools/scene/paint-test.cjs (the 2.0.2 renderer draws nothing in the same world).
The second 2.0.3 change: the phone rule (30 s window, four lanes) keys on the viewport width, not the canvas width; a 640 px hero
on a 1,440 px laptop was rendering as a phone while the app's card beside it was not.
scene/ is the one source: live-dag.js, proof-core.js, tokens.css (the fourteen palette tokens, the brand package's values, dark and
light), feed-contract.md and .json (one JSON shape for the observer's /api/live and the app's api/live), a recorded reply as the
fixture. tools/scene/sync.mjs writes the copies and the scene-tokens block into site.css and app.css; --check is the gate line
(byte-equal scripts, an equal block, the names defined nowhere else, a print block excepted), --self-test fails five known cases
first. The site's token definitions move out of the package's :root line into the block; no value changes on the site.
tools/scene/feed-contract.mjs validates a reply against the key lists; its test refuses a miner rewritten to "you", a float now,
a stray key. Three new lines in tools/ci/pre-push.sh. The app side (branch scene-parity, for 0.3.21) takes the same folder.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
(cherry picked from commit f774353461)
