Safety-critical fix replacing the hand-rolled WCAG impl with culori. Three defects eliminated: parse-to-black, wrong alpha math, AA-large as a normal-text level. All 3 callers reconciled; 6-pair reference table verified.
v102.0.42026-06-02
·wcagContrast.ts rewritten to wrap culori.wcagContrast — same dep already used for theme crossfade; no new packages
·Reference table verified (6 theme pairs, ±0.005 max diff): solar-plasma 17.73 AAA, obsidian-aurora 16.02 AAA, midnight-loom 17.74 AAA, void-circuit 11.58 AAA, agartha-dream 15.46 AAA, agartha-dusk 11.67 AAA — all match
·All 3 callers reconciled: badge (CategoryTheme), StatusPill (topbar, user-facing — all themes verified), colorSuggestionEngine (ratio-only, no level change needed)