Web audio synth with zero audio assets: deal whooshes, chip clacks, turn chimes, showdown and win stingers, plus a lazy 92bpm jazz loop. Transitions drive playback from pure snapshot mappers with staggered delays for the blind sequence, a header mute and volume toggle persists, and everything no-ops safely without audio support.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
