docs(env): canonicalize FIELD_ENCRYPTION_KEY in .env.example (GOO-238)

Replace KYC_ENCRYPTION_KEY/KYC_ENCRYPTION_KEY_VERSION in .env.example with
the canonical FIELD_ENCRYPTION_KEY/FIELD_ENCRYPTION_KEY_VERSION used by
env-validation.ts and the rotation runbook. Update bootstrap.sh sed line to
substitute the canonical name. Runtime still reads the legacy KYC_* vars as
a deprecated fallback for existing operators.

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

apps/api/src/modules/search/presentation/controllers/search.controller.ts

@@ -52,6 +52,7 @@ export class SearchController {
         dto.page,
         dto.perPage,
         dto.featured,
+        dto.ward,
       ),
     );
   }

apps/api/src/modules/search/presentation/dto/search-properties.dto.ts

@@ -74,6 +74,11 @@ export class SearchPropertiesDto {
   @IsString()
   district?: string;
 
+  @ApiPropertyOptional({ description: 'Ward name', example: 'Tan Phong' })
+  @IsOptional()
+  @IsString()
+  ward?: string;
+
   @ApiPropertyOptional({ description: 'City name', example: 'Ho Chi Minh' })
   @IsOptional()
   @IsString()