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/controllers/search.controller.ts

@@ -0,0 +1,72 @@
+import {
+  Controller,
+  Get,
+  Post,
+  Query,
+  UseGuards,
+} from '@nestjs/common';
+import { CommandBus, QueryBus } from '@nestjs/cqrs';
+import { SearchPropertiesQuery } from '../../application/queries/search-properties/search-properties.query';
+import { GeoSearchQuery } from '../../application/queries/geo-search/geo-search.query';
+import { ReindexAllCommand } from '../../application/commands/reindex-all/reindex-all.command';
+import { SearchPropertiesDto } from '../dto/search-properties.dto';
+import { GeoSearchDto } from '../dto/geo-search.dto';
+import { JwtAuthGuard } from '@modules/auth/presentation/guards/jwt-auth.guard';
+import { RolesGuard } from '@modules/auth/presentation/guards/roles.guard';
+import { Roles } from '@modules/auth/presentation/decorators/roles.decorator';
+import { type SearchResult } from '../../domain/repositories/search.repository';
+import { type ReindexResult } from '../../application/commands/reindex-all/reindex-all.handler';
+
+@Controller('search')
+export class SearchController {
+  constructor(
+    private readonly commandBus: CommandBus,
+    private readonly queryBus: QueryBus,
+  ) {}
+
+  @Get()
+  async search(@Query() dto: SearchPropertiesDto): Promise<SearchResult> {
+    return this.queryBus.execute(
+      new SearchPropertiesQuery(
+        dto.q,
+        dto.propertyType,
+        dto.transactionType,
+        dto.priceMin,
+        dto.priceMax,
+        dto.areaMin,
+        dto.areaMax,
+        dto.bedrooms,
+        dto.district,
+        dto.city,
+        dto.sortBy,
+        dto.page,
+        dto.perPage,
+      ),
+    );
+  }
+
+  @Get('geo')
+  async geoSearch(@Query() dto: GeoSearchDto): Promise<SearchResult> {
+    return this.queryBus.execute(
+      new GeoSearchQuery(
+        dto.lat,
+        dto.lng,
+        dto.radiusKm,
+        dto.propertyType,
+        dto.transactionType,
+        dto.priceMin,
+        dto.priceMax,
+        dto.sortBy,
+        dto.page,
+        dto.perPage,
+      ),
+    );
+  }
+
+  @UseGuards(JwtAuthGuard, RolesGuard)
+  @Roles('ADMIN')
+  @Post('reindex')
+  async reindex(): Promise<ReindexResult> {
+    return this.commandBus.execute(new ReindexAllCommand());
+  }
+}