refactor: premium design polish — cards, results, grid view

- PropertyIntelligenceCard: aspect-ratio image, hover animation, compact
  data-completeness row, tighter body padding
- Results: replace verbose Card with compact active-search strip, remove
  DecisionContextPanel
- Properties: add 3/5/10 column toggle in grid view, persist to localStorage
- NeedInput, UnifiedResultCard/Feed, MatchCardViewModel: cleanup from
  earlier session

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

src/components/results/UnifiedResultCard.tsx

@@ -125,16 +125,6 @@ export function UnifiedResultCard({ result, view = 'list' }: Props) {
   const listImageUrl = result.resultType !== 'FUTURE_AVAILABILITY'
     ? result.property.images?.[0]
     : undefined
-  const listOverlay = result.resultType !== 'FUTURE_AVAILABILITY'
-    ? resolveImageLabel({
-        assetType: result.property.assetType,
-        city: result.property.location.city,
-        district: result.property.location.district,
-        prestige: result.property.softFactors?.prestige,
-        floorLevel: result.property.floorLevel,
-        propertyId: result.property.id,
-      })
-    : null
 
-  return <MatchCardCompact vm={vm} imageUrl={listImageUrl} overlayTypeLabel={listOverlay?.type} />
+  return <MatchCardCompact vm={vm} imageUrl={listImageUrl} />
 }

src/components/results/UnifiedResultFeed.tsx

@@ -86,7 +86,7 @@ export function UnifiedResultFeed({ results, view = 'list' }: Props) {
         ))}
       </Box>
     ) : (
-      <Box sx={{ display: 'flex', flexDirection: 'column', gap: 1.5 }}>
+      <Box sx={{ display: 'flex', flexDirection: 'column', gap: 2 }}>
         {items.map(result => (
           <UnifiedResultCard key={result.matchId} result={result} view="list" />
         ))}