feat(listings): add price validator, moderation service, and improve handlers

Add domain-level price validator and moderation services with Prisma
implementation. Improve listing creation, status management, and media
upload handlers. Add price validator spec.

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

apps/api/src/modules/listings/listings.module.ts

@@ -11,10 +11,13 @@ import { SearchListingsHandler } from './application/queries/search-listings/sea
 import { LISTING_REPOSITORY } from './domain/repositories/listing.repository';
 import { PROPERTY_REPOSITORY } from './domain/repositories/property.repository';
 import { DUPLICATE_DETECTOR } from './domain/services/duplicate-detector';
+import { ModerationService } from './domain/services/moderation.service';
+import { PRICE_VALIDATOR } from './domain/services/price-validator';
 import { PrismaListingRepository } from './infrastructure/repositories/prisma-listing.repository';
 import { PrismaPropertyRepository } from './infrastructure/repositories/prisma-property.repository';
 import { MEDIA_STORAGE_SERVICE, MinioMediaStorageService } from './infrastructure/services/media-storage.service';
 import { PrismaDuplicateDetector } from './infrastructure/services/prisma-duplicate-detector';
+import { PrismaPriceValidator } from './infrastructure/services/prisma-price-validator';
 import { ListingsController } from './presentation/controllers/listings.controller';
 
 const CommandHandlers = [
@@ -45,6 +48,8 @@ const QueryHandlers = [
 
     // Services
     { provide: DUPLICATE_DETECTOR, useClass: PrismaDuplicateDetector },
+    { provide: PRICE_VALIDATOR, useClass: PrismaPriceValidator },
+    ModerationService,
     { provide: MEDIA_STORAGE_SERVICE, useClass: MinioMediaStorageService },
 
     // CQRS