feat(search): implement Search module with Typesense full-text & geo search

- TypesenseClient service with configurable connection
- Collection schema for listings with facets, geo-point, and Vietnamese text
- ListingIndexer service with PostGIS coordinate extraction for geo search
- CQRS commands: SyncListing, ReindexAll (batch with pagination)
- CQRS queries: SearchProperties (filters, sorting), GeoSearch (radius)
- Event handlers for listing.approved/updated/deactivated auto-sync
- REST endpoints: GET /search, GET /search/geo, POST /search/reindex (admin)
- DTOs with class-validator validation and pagination

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

apps/api/src/modules/search/presentation/index.ts

@@ -0,0 +1,2 @@
+export * from './controllers';
+export * from './dto';