SOH4C4759/dsh-ui-sound

Audible feedback for the DSH web interface: button presses are classified by semantics (normal, primary, toggle, send, close, danger, link) and the current session's task transitions (started, finished, failed) plus any pending interaction play a cue, each scenario with its own cue picker and switch on a settings page. All 78 cues and 12 sound packs are synthesised in the browser with the Web Audio API, so the package ships no audio files and makes no network request. A community port of dsh-plugin-uisfx to DSH 0.2.0, with the ported changes recorded in PROVENANCE.md.