feat(listings): complete featured listings with payment, expiry, and Typesense boost

- Add `featuredPackage` column to Listing (3_days/7_days/30_days)
- Update ActivateFeaturedListingHandler to store package + emit listing.updated for Typesense re-index
- Add ListingFeaturedExpiredHandler in search module to re-index on featured expiry
- Add tier-weighted isFeatured boost in Typesense (30d=3, 7d=2, 3d=1)
- Update expiry cron to clear featuredPackage alongside featuredUntil
- Update admin and promote handlers to persist featuredPackage
- Add/update tests: activation (8 cases), featured-expired search handler

TEC-3070

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

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

@@ -20,4 +20,5 @@ export { ListingPriceChangedEvent } from './domain/events/listing-price-changed.
 export { ListingSoldEvent } from './domain/events/listing-sold.event';
 export { ListingStatusChangedEvent } from './domain/events/listing-status-changed.event';
 export { ListingOwnershipTransferredEvent } from './domain/events/listing-ownership-transferred.event';
+export { ListingFeaturedExpiredEvent } from './domain/events/listing-featured-expired.event';
 export { Price } from './domain/value-objects/price.vo';