- N122: setMediaState resolves on EC's transport ACK instead of waiting for a
DeviceMute state-echo that EC may elide or skip during teardown — which
previously stranded the promise forever and silently skipped the initial
deafen state + first StateUpdate on join. Dropped the single-slot
mediaStatePromiseResolver; onMediaState remains the authoritative sync path.
- N123: focusCameraParticipant now waits for a spotlight videoTile to mount via
a MutationObserver (with a 600ms hard-timeout fallback) instead of a fixed
2-frame delay that EC's React commit can exceed on slower devices.
- N126: PiP position restored from localStorage is shape+finiteness validated,
so corrupt data can't feed NaN into the position math (invalid 'NaNpx' CSS).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
jared
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