feat(jam): in-app Lobby Jam — lo-fi study music + guitar-playing cat#10
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…playing cat
The cat plays an endless, improvising lo-fi guitar loop (Karplus-Strong, 100%
synthesized — no audio files) and holds a little pixel guitar while it plays.
- src/jam.js: the synth engine, reusing the overlay's shared AudioContext/master
so it respects the Volume slider and mixes with meow/purr.
- Settings: new "Lobby Jam" section (play toggle + Cozy/Dreamy/Upbeat mood) and a
tray "Lobby Jam" toggle. Config persists { on, mood } and auto-resumes on launch.
- renderer/effects: the cat holds + strums a procedurally-drawn guitar, bobs to the
beat, and floats music notes (drawGuitar/drawNote); reduced-motion / low-power aware.
- main: autoplay-policy switch so the music can resume at launch without a click.
- tests: lobbyJam normalize test; correct a stale email-TLS assertion.
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Builds Lobby Jam — synthesized lo-fi study/focus music — right into PixelCat, so the cat plays it.
What you get
How it's wired (reuses existing patterns)
src/jam.js— the synth engine, reusing the overlay's sharedAudioContext/masterfromaudio.js.lobbyJam: { on, mood }(normalized + persisted); the existingconfigbroadcast drives the cat — no new IPC.effects.jsdrawGuitar/drawNote(procedural pixel art, like the existing hearts/think-bubble);renderer.jsreconciles audio + draws the guitar/bob/notes.Verification
npm run lintclean;npm test13/13 (added alobbyJamnormalize test; also corrected a pre-existing stale email-TLS assertion).--shot --state=jamand visually confirmed.npm startworks; the packed build can't be rebuilt on this machine (Smart App Control + winCodeSign), so test in dev.