gahusb
744ccbf434
The idleSpriteWrapperStyle was using `keyframes.toString()` inside a JS template literal, so Emotion's serializer hit the string-handling branch and never injected the @keyframes block — the animation silently did nothing. Switch to direct Keyframes-object interpolation inside css\`...\` so Emotion registers the rule and returns the animation name. Also add 'wheel' to ACTIVITY_EVENTS so desktop mouse-wheel scrolling on the inner scrollable content area resets the idle timer (the existing 'scroll' listener on window only catches mobile/touch scroll). Update the source plan doc to reflect the corrected idiom so future implementers don't repeat the bug. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
