From gekh's review of #768, each with a test that fails before:
- P2: the panel no longer reopens on every page load. The shell reports
who asked for Street Level to switch on; only a user, voice or tool
request (isExplicitLayerStateOrigin) or an opening photo opens it, and
those automatic opens are never stored. Without the hook, a stored or
shared "collapsed" choice wins during the restore window.
- P2: the expanded photo hides in Clean View, recording and the cockpit,
and holds neither Esc nor Tab while hidden.
- Esc/Tab are taken only from the viewer, body or globe, not app-wide;
FIT/FILL show the right choice while expanded; a 0x0 viewer is never
resized (no z=NaN tile request); the expanded viewer keeps the panel's
CSS tokens; KEY REQUIRED hides the raw "no_key" code.
- Share links carry the panel's collapsed state (ui token t); the Cyber
theme frames the panel like its rail peers (the pinned Cyber selector
tests now list it).
- Accessibility: radiogroups move with arrow keys and are one tab stop,
their focus ring is no longer clipped, and the provider chips sit
outside the disabled fieldset so the "how to add the key" hint stays
reachable (a gated chip explains instead of toggling).
- Renders write only changed attributes (the rail's MutationObserver
relaid out on every write); one coalesced resize per open; the legacy
render-mode key migration is gone.
Co-Authored-By: Claude Opus 5.5 <[email protected]>