Surface map now tries palette keys (bgSunken, surfaceHi, textHi,
etc.) first, falling back to semantic refs for legacy themes.
Sidebar/panel bg differentiates from workspace bg. Buttons use
accent colour with onAccent text. Four-level text gradient flows
to widgets.
WCAG-AA contrast fixes: clide textDim lightened, midnight
onAccent darkened, paper textDim darkened. Contrast test updated
to cover all four themes. Resolver tests updated for the new
palette shape. Goldens regenerated.
Co-Authored-By: Claude <noreply@anthropic.com>
jpmschweitzerandClaude
8b5615426a