Per-game table theming

One premium table, skinned per game. The vendored premium-table.css stays pristine; each skin is a scoped override generated from that game's GameTheme tokens — the felt gradient, the casino rim and ambient glow, the glass HUD, and the team life-pips. Every palette is WCAG-AA validated by the token contract, so each is distinct and legible: Thuru 304 jade, Turup 29 Mughal brown, Omi 8 green baize, Hokm 52 Persian blue. Same engine, same chrome — different soul. Proof-only.