Rewrite components/ui/* (Button, Card, Badge, PageHeader, EmptyState, Skeleton) against the chunk-1 tokens instead of hardcoded gray-9xx classes, and drop the remaining font-mono from label/heading text. Add the three colour-blindness-validated encoding components from UI_REDESIGN.md §2.3: - components/marks/SeverityMark.tsx — glyph (filled triangle / outline triangle / outline circle) + optional spine + optional label, from the four-level severity ladder. Colour is never the only channel. - components/marks/TypeGlyph.tsx — five stroked SVG glyphs (fire, police, ems, collision, other) in currentColor. Incident type is now shape, not hue, since five hues can't clear an all-pairs CVD gate. - components/marks/NodeMark.tsx — diamond at four weights (filled+ring / filled / hollow / hollow-dashed). Green is gone from node state entirely. lib/severity.tsx now renders through SeverityMark; SEVERITY_COLORS reads the validated sev-moderate/sev-major tokens with routine/minor neutral. IncidentBadges.tsx's TypeBadge is reimplemented on TypeGlyph instead of a coloured pill. Per UI_REDESIGN.md chunk 2.