refactor: centralise color maps, org color fallback, and motion-safe transitions

Create src/lib/theme-colors.ts with DOT_COLORS, KPI_COLORS,
PROJECT_STATUS_COLORS, and DEFAULT_ORG_COLOR constants. Add
motionSafeTransition() utility to src/lib/utils.ts.

Removes 6 duplicate color map definitions across Card, DetailPanel,
PatientSummaryTile, KPIDetail, ProjectsTile, and ProjectDetail.
Replaces 9 hardcoded '#0D6E6E' fallbacks and 7 inline motion ternaries.
Fixes project status color inconsistency between ProjectsTile and
ProjectDetail (Ongoing was teal in tile, amber in detail).

src/components/tiles/PatientSummaryTile.tsx

@@ -6,12 +6,7 @@ import { kpis } from '@/data/kpis'
 import type { KPI } from '@/types/pmr'
 import { useDetailPanel } from '@/contexts/DetailPanelContext'
 import { getLatestResultsCopy, getProfileSectionTitle, getProfileSummaryText } from '@/lib/profile-content'
-
-const colorMap: Record<KPI['colorVariant'], string> = {
-  green: '#059669',
-  amber: '#D97706',
-  teal: '#0D6E6E',
-}
+import { KPI_COLORS } from '@/lib/theme-colors'
 
 interface MetricCardProps {
   kpi: KPI
@@ -52,7 +47,7 @@ function MetricCard({ kpi }: MetricCardProps) {
     fontWeight: 700,
     letterSpacing: '-0.02em',
     lineHeight: 1.2,
-    color: colorMap[kpi.colorVariant],
+    color: KPI_COLORS[kpi.colorVariant],
   }
 
   const labelStyles: React.CSSProperties = {

src/components/tiles/ProjectsTile.tsx

@@ -3,12 +3,7 @@ import { investigations } from '@/data/investigations'
 import { Card, CardHeader } from '../Card'
 import { useDetailPanel } from '@/contexts/DetailPanelContext'
 import type { Investigation } from '@/types/pmr'
-
-const statusColorMap: Record<string, string> = {
-  Complete: '#059669',
-  Ongoing: '#0D6E6E',
-  Live: '#059669',
-}
+import { PROJECT_STATUS_COLORS } from '@/lib/theme-colors'
 
 interface ProjectItemProps {
   project: Investigation
@@ -25,7 +20,7 @@ function ProjectItem({
   thumbnailHeight,
   onClick,
 }: ProjectItemProps) {
-  const dotColor = statusColorMap[project.status] || '#0D6E6E'
+  const dotColor = PROJECT_STATUS_COLORS[project.status]
   const isLive = project.status === 'Live'
 
   const handleKeyDown = useCallback(