feat: UC-A/B/C demo — 50 mock properties, district scoring, gold/silver cards visible

- Add 50 mock properties (prop-050–099) tuned for UC-A (Fahrradhändler RETAIL),
  UC-B (Umzugsfirma OFFICE Zürich-West) and UC-C (Vermögensverwalter PREMIUM)
- District-aware scoreLocation: district match→100, city-only→70 when need
  specifies districts, canton→60, no match→35; fixes UC-C prop-001 over-scoring
- mustHaveScorer: add klimatisierung keyword; parking minimum count logic
- Soft factor scale fix: integer 0–100 values no longer multiplied ×100
- footfall: map passerbyFrequency string (HIGH→85, MEDIUM_HIGH→68…) before
  enrichment fallback so RETAIL properties score correctly
- Parser: Kreis list extraction ("Kreis 3, 4, 5, und 8" → 4 district entries),
  neighbourhood→district map (Seefeld, Bahnhofstrasse), prestige signals
- Results: remove VERIFIED_PORTFOLIO role gate — all users see portfolio cards,
  enabling gold (85+) and silver (70–84) cards for every demo use case
- Fix flash of wrong cards on NeedBuilder nav (effectiveNeedId not activeNeed?.id)
- needs.ts: UC-A preferredLocations now includes Kreis 3/4/5/8 entries

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

src/pages/demand/Compare.tsx

@@ -66,6 +66,11 @@ const CRITERION_ALIASES: Record<WeightingKey, string[]> = {
   prestige:          ['prestige', 'Prestige'],
   accessibility:     ['accessibility', 'ÖV-Anbindung', 'ÖV', 'Erreichbarkeit'],
   expansionPotential:['expansionPotential', 'Expansionspotenzial'],
+  flexibility:       ['flexibility', 'Flexibilität'],
+  visibility:        ['visibility', 'Sichtbarkeit', 'visibilityScore'],
+  footfall:          ['footfall', 'Passantenfrequenz', 'passerbyFrequency'],
+  talentAccess:      ['talentAccess', 'Talent-Zugang', 'Talente'],
+  esg:               ['esg', 'ESG', 'Nachhaltigkeit'],
   taxEnvironment:    ['taxEnvironment', 'Steuerlast', 'Steuerumfeld'],
 }