feat: add Maison Work source type, rename ExternalMarket to Direktinserat, hide own portfolio from demand search by default

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

src/components/supply/propertyHelpers.ts

@@ -53,7 +53,8 @@ export function getAvailabilityChipColor(status: AvailabilityStatus): 'success'
 export function getResultTypeLabel(type: ResultType): string {
   const labels: Record<string, string> = {
     VERIFIED_PORTFOLIO: 'Portfolio',
-    EXTERNAL_MARKET: 'Markt',
+    EXTERNAL_MARKET: 'Direktinserat',
+    MAISON_WORK: 'Maison Work',
     FUTURE_AVAILABILITY: 'Zukunft',
   }
   return labels[type] ?? type
@@ -63,6 +64,7 @@ export function getResultTypeColor(type: ResultType): string {
   const colors: Record<string, string> = {
     VERIFIED_PORTFOLIO: '#1e3a5f',
     EXTERNAL_MARKET: '#1a7a4a',
+    MAISON_WORK: '#0369a1',
     FUTURE_AVAILABILITY: '#7c3aed',
   }
   return colors[type] ?? '#6b7280'