BespokeSynth

build(stableaudio): shorten stableaudio-rs source and target paths to

feat(stableaudio): add autonext playback and prompt-driven generation flow

feat(stableaudio): add transport BPM sync and generated WAV management

fix(stableaudio): guard sample swaps to stop silent crashes, add autoplay prompt generator, add crossfade, and define tooltips for ui elements.

StableAudio3 Synth - generate music and efx via prompt