HUD header: keep ROUND on one line, compact phase badge (▲ PEAK ▲) + NEW GAME so the whole row fits in normal and peak

HUD: shrink Help button to '?'; nowrap button labels so Help + New Game stay on one line

Add How-to-Play button + tip; rename to 'Mumbai Local' (drop PANIC in brand board + splash title)

Deploy Mumbai Local Panic — Nemotron(ZeroGPU) dispatcher + VoxCPM2 voice