Dashboard tile endpoint returning activeCount, avgPrice, medianPrice, priceChangePct (1d/7d/30d), avgPricePerM2, daysOnMarket, newListings24h. Redis cache-aside with 5min TTL. CQRS query handler with parallel Prisma queries for p95 <200ms on cache hit. Refs: TEC-3049 Co-Authored-By: Paperclip <noreply@paperclip.ing>