Master volume control + reposition the ⚙ panel above the settings button

Paul: "add a master volume control to the settings popup panel and pop that panel up aligned right above the settings button rather than at the top."

VOLUME — a dedicated userGain node rides AFTER the analyser in the ring path (engine/faust/live.js) — placed there so the listener's volume never collides with the engine's fade/mute automation on masterGain, and the…

PANEL POSITION — #panel was pinned top-right; it now anchors bottom-right ABOVE the chips row (bottom:4.2rem, right:.7rem — the settings button's edge) and grows upward, matching what the mobile layout already did.

Verified: headless: panel opens above the chips, right-aligned, off the top of the screen, volume slider drives S.masterVol + localStorage

▶ Play it: Food Court Eternity — the brightest, most processed corner of the space https://stellate.app/?genre=vaporwave&seed=5970&path=1679.4393,1698.4426,1660.4426&xdur=13.122

77736be https://github.com/aboard-io/stellate/commit/77736bea01ffbec3c717ef6df36e70426cd8206b