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/constellation/MobileAccordion.tsx

@@ -1,7 +1,7 @@
 import React, { useState, useEffect } from 'react'
 import { motion, AnimatePresence } from 'framer-motion'
 import type { TimelineEntity } from '@/types/pmr'
-import { prefersReducedMotion } from './constants'
+import { motionSafeTransition } from '@/lib/utils'
 
 interface MobileAccordionProps {
   pinnedCareerEntity: TimelineEntity | null
@@ -23,7 +23,7 @@ export const MobileAccordion: React.FC<MobileAccordionProps> = ({ pinnedCareerEn
           initial={{ height: 0 }}
           animate={{ height: 'auto' }}
           exit={{ height: 0 }}
-          transition={prefersReducedMotion ? { duration: 0 } : { duration: 0.2, ease: 'easeOut' }}
+          transition={motionSafeTransition(0.2)}
           style={{ overflow: 'hidden' }}
         >
           <div