wip: listings/admin in-flight — bulk update, duplicates, audit log, price constraints

Batch-committing concurrent work-in-progress so it isn't lost:

Listings — bulk update + duplicate detection
---------------------------------------------
- New command BulkUpdateListings + handler + tests under
  application/commands/bulk-update-listings/.
- New DTO presentation/dto/bulk-update-listings.dto.ts.
- Controller wires the bulk endpoint; update DTO extended.
- Property duplicate detector hardened: normalized-address pipeline
  (new migration 20260420020000_add_property_address_normalized),
  repository + service updates, tests refreshed.
- Listing entity gains ownership-transferred event (new event file).
- Integration specs for price constraints
  (20260420000000_add_price_check_constraints) and duplicates.
- E2E: e2e/api/listings-duplicates.spec.ts.

Admin — moderation audit log
----------------------------
- New Prisma table (migration 20260420010000_add_moderation_audit_log)
  + Prisma repo + interface + DI wiring.
- Listener `moderation-audit.listener.ts` + unit spec.
- Query GetModerationAuditLogs + handler + controller
  `admin-moderation-audit.controller.ts` + DTO.

Supporting
----------
- shared/infrastructure/cache.service.ts tweak.
- AUDIT_LISTINGS_PROPERTY_MANAGEMENT.md — in-repo audit notes.
- Various test + module wiring updates to keep the tree green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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

@@ -3,6 +3,7 @@ import { CqrsModule } from '@nestjs/cqrs';
 import { MulterModule } from '@nestjs/platform-express';
 import { FeatureListingThrottlerGuard } from '@modules/shared';
 import { AdminFeatureListingHandler } from './application/commands/admin-feature-listing/admin-feature-listing.handler';
+import { BulkUpdateListingsHandler } from './application/commands/bulk-update-listings/bulk-update-listings.handler';
 import { CreateListingHandler } from './application/commands/create-listing/create-listing.handler';
 import { DeleteListingHandler } from './application/commands/delete-listing/delete-listing.handler';
 import { FeatureListingHandler } from './application/commands/feature-listing/feature-listing.handler';
@@ -16,6 +17,7 @@ import { RecordPriceHistoryHandler } from './application/event-handlers/record-p
 import { GetListingHandler } from './application/queries/get-listing/get-listing.handler';
 import { GetPendingModerationHandler } from './application/queries/get-pending-moderation/get-pending-moderation.handler';
 import { GetPriceHistoryHandler } from './application/queries/get-price-history/get-price-history.handler';
+import { GetPropertyDuplicatesHandler } from './application/queries/get-property-duplicates/get-property-duplicates.handler';
 import { SearchListingsHandler } from './application/queries/search-listings/search-listings.handler';
 import { LISTING_REPOSITORY } from './domain/repositories/listing.repository';
 import { PROPERTY_REPOSITORY } from './domain/repositories/property.repository';
@@ -40,6 +42,7 @@ const CommandHandlers = [
   UploadMediaHandler,
   ModerateListingHandler,
   DeleteListingHandler,
+  BulkUpdateListingsHandler,
 ];
 
 const QueryHandlers = [
@@ -47,6 +50,7 @@ const QueryHandlers = [
   SearchListingsHandler,
   GetPendingModerationHandler,
   GetPriceHistoryHandler,
+  GetPropertyDuplicatesHandler,
 ];
 
 const EventHandlers = [