feat(analytics): AVM v2 batch valuation, comparison, history + frontend upgrade

Add batch valuation (POST /analytics/valuation/batch, max 50 properties),
valuation comparison (POST /analytics/valuation/compare, 2-5 properties),
and history endpoint (GET /analytics/valuation/history/:propertyId) with
confidence explanation helper. Frontend: enhanced valuation form with project
autocomplete and deep analysis toggle, results with confidence badges and
price range visualization, comparables table, history chart, market context
card, and PDF export.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/api/src/modules/analytics/domain/services/avm-service.ts

@@ -1,4 +1,4 @@
-import { PropertyType } from '@prisma/client';
+import { type PropertyType } from '@prisma/client';
 
 export const AVM_SERVICE = Symbol('AVM_SERVICE');
 
@@ -31,9 +31,38 @@ export interface ValuationResult {
   pricePerM2: number;
   comparables: Comparable[];
   modelVersion: string;
+  confidenceExplanation?: string;
+}
+
+export interface BatchValuationItem {
+  propertyId: string;
+}
+
+export interface BatchValuationResult {
+  propertyId: string;
+  valuation: ValuationResult | null;
+  error?: string;
+}
+
+export interface ValuationHistoryPoint {
+  estimatedPrice: string;
+  confidence: number;
+  pricePerM2: number;
+  modelVersion: string;
+  valuedAt: string;
+}
+
+export interface ValuationComparisonItem {
+  propertyId: string;
+  address: string;
+  district: string;
+  areaM2: number;
+  propertyType: PropertyType;
+  valuation: ValuationResult | null;
 }
 
 export interface IAVMService {
   estimateValue(params: AVMParams): Promise<ValuationResult>;
   getComparables(propertyId: string, radiusMeters: number): Promise<Comparable[]>;
+  estimateBatch(items: BatchValuationItem[]): Promise<BatchValuationResult[]>;
 }