feat: remove EXTERNAL_MARKET result type entirely

All external market properties now surface as VERIFIED_PORTFOLIO.
Removes the type from enums, domain types, mock data, matching engine,
components, hooks, and tests — zero user-visible distinction remains.

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

src/features/matching/__tests__/rankingEngine.test.ts

@@ -38,20 +38,17 @@ describe('rankMatches', () => {
     expect(ranked[0].propertyId).toBe('high')
   })
 
-  it('breaks ties by result type: VERIFIED_PORTFOLIO before EXTERNAL_MARKET', () => {
+  it('breaks ties by result type: VERIFIED_PORTFOLIO and MAISON_WORK ranked above FUTURE_AVAILABILITY', () => {
     // Build one of each type but force identical score by using same property body
     const prop = makeProperty()
     const verified  = buildFullMatch(need, { ...prop, id: 'v', resultType: ResultType.VERIFIED_PORTFOLIO })
-    const external  = buildFullMatch(need, { ...prop, id: 'e', resultType: ResultType.EXTERNAL_MARKET, confidenceScore: 0.85 })
+    const future    = buildFullMatch(need, { ...prop, id: 'f', resultType: ResultType.FUTURE_AVAILABILITY, confidenceScore: 0.85 })
 
-    // If scores differ, force them equal for a clean tiebreak test
-    if (verified.matchScore !== external.matchScore) {
-      const lower = Math.min(verified.matchScore, external.matchScore)
-      verified.matchScore = lower
-      external.matchScore = lower
-    }
+    // Force same score for a clean tiebreak test
+    verified.matchScore = 75
+    future.matchScore   = 75
 
-    const ranked = rankMatches([external, verified])
+    const ranked = rankMatches([future, verified])
     expect(ranked[0].resultType).toBe(ResultType.VERIFIED_PORTFOLIO)
   })
 

src/features/matching/__tests__/scoreCalculator.test.ts

@@ -56,11 +56,6 @@ describe('calcConfidenceModifier', () => {
     expect(calcConfidenceModifier(p)).toBe(0)
   })
 
-  it('returns -3 for external market results', () => {
-    const p = makeProperty({ resultType: ResultType.EXTERNAL_MARKET, confidenceScore: 0.80 })
-    expect(calcConfidenceModifier(p)).toBe(-3)
-  })
-
   it('returns -2 for Maison Work results', () => {
     const p = makeProperty({ resultType: ResultType.MAISON_WORK, confidenceScore: 0.80 })
     expect(calcConfidenceModifier(p)).toBe(-2)
@@ -72,9 +67,9 @@ describe('calcConfidenceModifier', () => {
   })
 
   it('stacks an additional -10 penalty when confidenceScore < 0.50', () => {
-    // EXTERNAL_MARKET (-3) + LOW_CONFIDENCE (-10) = -13
-    const p = makeProperty({ resultType: ResultType.EXTERNAL_MARKET, confidenceScore: 0.45 })
-    expect(calcConfidenceModifier(p)).toBe(-13)
+    // MAISON_WORK (-2) + LOW_CONFIDENCE (-10) = -12
+    const p = makeProperty({ resultType: ResultType.MAISON_WORK, confidenceScore: 0.45 })
+    expect(calcConfidenceModifier(p)).toBe(-12)
   })
 
   it('stacks -10 on FUTURE_AVAILABILITY when confidence is also low', () => {
@@ -157,12 +152,12 @@ describe('calculateScore', () => {
     expect(output.finalScore).toBeGreaterThanOrEqual(85)
   })
 
-  it('scores a weak match (wrong city, over budget, poor DQ, external market) below 50', () => {
+  it('scores a weak match (wrong city, over budget, poor DQ, low confidence) below 50', () => {
     const need = makeNeed({ preferredLocations: ['Zürich'] })
     const prop = makeProperty({
       location: { city: 'Basel', country: 'CH' },
       rentPricePerSqm: 70,             // 140% of max budget 50 — not excluded but severe penalty
-      resultType: ResultType.EXTERNAL_MARKET,
+      resultType: ResultType.VERIFIED_PORTFOLIO,
       confidenceScore: 0.45,           // triggers LOW_CONFIDENCE -10 stacking
       dataQuality: {
         score: 0.30,                   // CRITICAL → -15

src/features/matching/__tests__/softFactorEnrichment.test.ts

@@ -132,7 +132,7 @@ describe('softFactorEnrichmentService — score range invariant (all keys, 0–1
 describe('softFactorEnrichmentService — Pre-Market vs Market Signal', () => {
   it('returns identical estimate for same location regardless of resultType', () => {
     // The enrichment service is location-only — resultType is irrelevant.
-    // FUTURE_AVAILABILITY (pre-market) and EXTERNAL_MARKET should produce the same soft factor score.
+    // FUTURE_AVAILABILITY (pre-market) and VERIFIED_PORTFOLIO should produce the same soft factor score.
     const sharedLocation = { city: 'Zürich', district: 'Oerlikon', country: 'CH' }
     const sharedAddress  = { street: 'Thurgauerstrasse', houseNumber: '1', postalCode: '8050', city: 'Zürich', country: 'CH' }
 
@@ -141,16 +141,16 @@ describe('softFactorEnrichmentService — Pre-Market vs Market Signal', () => {
       address: sharedAddress,
       resultType: ResultType.FUTURE_AVAILABILITY,
     })
-    const marketResult = makeProperty({
+    const portfolioResult = makeProperty({
       location: sharedLocation,
       address: sharedAddress,
-      resultType: ResultType.EXTERNAL_MARKET,
+      resultType: ResultType.VERIFIED_PORTFOLIO,
     })
 
     const futureEst = softFactorEnrichmentService.estimate('accessibility', futureSignal)
-    const marketEst = softFactorEnrichmentService.estimate('accessibility', marketResult)
-    expect(futureEst?.score).toBe(marketEst?.score)
-    expect(futureEst?.label).toBe(marketEst?.label)
+    const portfolioEst = softFactorEnrichmentService.estimate('accessibility', portfolioResult)
+    expect(futureEst?.score).toBe(portfolioEst?.score)
+    expect(futureEst?.label).toBe(portfolioEst?.label)
   })
 
   it('FUTURE_AVAILABILITY at Oerlikon gets meaningful accessibility score (> 0.70)', () => {