feat: F015 shortlist management

3-panel Shortlists page with left list, center detail, right decision brief panel. AddToShortlistDialog wired into result feed cards and match detail. Full DRAFT→REVIEW_READY→FINALIZED workflow, AI-generated decision brief draft, duplicate prevention, and compare-view integration.

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

src/components/results/UnifiedResultCard.tsx

@@ -2,6 +2,7 @@ import { useNavigate } from 'react-router'
 import { MatchCardCompact } from '../match-card/MatchCardCompact'
 import { buildMatchCardViewModel } from '../../features/matching/matchCardAdapter'
 import { useCompareStore } from '../../stores/compareStore'
+import { useShortlistStore } from '../../stores/shortlistStore'
 import type { UnifiedMatchResult } from '../../domain/unifiedResult'
 import type { MatchCardAction } from '../match-card/MatchCardViewModel'
 
@@ -9,9 +10,17 @@ interface Props {
   result: UnifiedMatchResult
 }
 
+function getResultTitle(result: UnifiedMatchResult): string {
+  if (result.resultType !== 'FUTURE_AVAILABILITY') {
+    return (result as any).property?.title ?? result.matchId
+  }
+  return (result as any).signal?.companyName ?? result.matchId
+}
+
 export function UnifiedResultCard({ result }: Props) {
   const navigate = useNavigate()
   const { addToCompare, removeFromCompare, isInCompare, isFull } = useCompareStore()
+  const { openAddDialog } = useShortlistStore()
   const inCompare = isInCompare(result.matchId)
 
   const actions: MatchCardAction[] = [
@@ -20,8 +29,15 @@ export function UnifiedResultCard({ result }: Props) {
       label: 'Shortlist',
       actionType: 'SAVE_SHORTLIST',
       variant: 'secondary',
-      disabled: true,
-      onClick: () => {},
+      onClick: () => openAddDialog({
+        resultId: result.matchId,
+        resultType: result.resultType,
+        title: getResultTitle(result),
+        matchScore: result.matchScore,
+        confidenceScore: result.match.confidenceLevel,
+        sourceLabel: result.resultType,
+        addedBy: 'admin@ideal-sharing.ch',
+      }),
     },
     {
       id: 'compare',