feat: Steuerlast-Kriterium, ImmoScout-Layout, Gold/Silver/Bronze-Trennung

- Flächensuche: Flexibilität durch Steuerlast (taxEnvironment) ersetzt
- MatchDetail: Bild als Hero-Banner oben, Karte eingebettet im Inhalt darunter
- Ergebnisliste: Gold/Silber/Bronze-Abschnitte mit farbigen Trennlinien
- ScoreBreakdown: KI-Steuerlast-Link zur kantonalen Steuerrechner-Seite
- Beispieldaten: alle Objekte mit passenden Bildern versehen
- locationIntelligence: taxCalculatorUrl pro Kanton ergänzt

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

src/features/matching/matchCardAdapter.ts

@@ -10,6 +10,7 @@ import type {
   MatchCardAction,
   MatchCardReason,
 } from '../../components/match-card/MatchCardViewModel'
+import { getCityIntelligence } from '../../lib/locationIntelligence'
 
 const HARD_CRITERIA = new Set(['area', 'location', 'budget', 'timing'])
 
@@ -76,6 +77,9 @@ export function buildMatchCardViewModel(
 
   const reasons = buildReasons(match.positiveFactors)
 
+  const cityIntel = city ? getCityIntelligence(city) : null
+  const taxCalculatorUrl = cityIntel?.taxCalculatorUrl
+
   const dataQualityScore =
     property?.dataQuality?.score ?? signal?.confidenceScore ?? 0.5
 
@@ -104,6 +108,7 @@ export function buildMatchCardViewModel(
       ? (signal?.disclaimer ?? 'Probabilistisches Signal – kein bestätigtes Objekt')
       : undefined,
     explainabilitySummary: match.explainabilitySummary,
+    taxCalculatorUrl,
     isReviewRequired: match.status === 'PENDING_REVIEW',
     isStaleData: false,
   }

src/features/matching/scoreCalculator.ts

@@ -22,7 +22,7 @@ function resolveProfile(need: Need, property: Property): ScoringWeightProfile {
   if (!np) return base
 
   // Apply need's custom core weights, then renormalize the full profile to 1.00
-  const CORE = ['area', 'location', 'budget', 'timing', 'prestige', 'accessibility', 'expansionPotential', 'flexibility']
+  const CORE = ['area', 'location', 'budget', 'timing', 'prestige', 'accessibility', 'expansionPotential', 'taxEnvironment']
   for (const key of CORE) {
     if (typeof np[key] === 'number') base[key] = np[key]
   }