refactor: consolidate duplicated UI score/color/badge logic into lib/

- Add matchScoreHex(), criterionScoreColor(), criterionScoreTextColor() to lib/utils.ts
- Add RESULT_TYPE_META (labels + colors) to lib/ds.ts as single source of truth
- Remove 5 local scoreColor() functions: StrongMatchMiniCard, MatchListCard,
  pipelineUtils (re-exported as matchScoreHex), CriterionRow, ScoreBreakdownPanel,
  ScoreInlineBreakdown
- Remove local RESULT_TYPE_META/TYPE_META from MatchCardHeader, ResultTypeBadge;
  remove RESULT_TYPE_LABEL/COLOR from pipelineConstants — all now use lib/ds.ts
- Replace local confidenceColor() in MatchCardHeader, ConfidenceFieldBadge,
  ReliabilityScorePanel with confidenceHex() from lib/utils.ts
- Replace local qualityColor() in propertyHelpers, DataQualityWidget with
  dataQualityColor() from lib/utils.ts
- Fix FUTURE_AVAILABILITY label inconsistency ('Future'/'Zukunft' → 'Zukunftssignal')
- Fix EXTERNAL_MARKET label inconsistency ('Direktinserat' → 'Plattform')
- tsc --noEmit passes with zero errors

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/ops/ReliabilityScorePanel.tsx

@@ -1,10 +1,5 @@
 import { Box, LinearProgress, Tooltip, Typography } from '@mui/material'
-
-function scoreColor(score: number): string {
-  if (score >= 0.85) return '#15803d'
-  if (score >= 0.65) return '#a16207'
-  return '#dc2626'
-}
+import { confidenceHex } from '../../lib/utils'
 
 interface ReliabilityScorePanelProps {
   score: number
@@ -13,7 +8,7 @@ interface ReliabilityScorePanelProps {
 
 export function ReliabilityScorePanel({ score, compact = false }: ReliabilityScorePanelProps) {
   const pct = Math.round(score * 100)
-  const color = scoreColor(score)
+  const color = confidenceHex(score)
 
   if (compact) {
     return (