pagination optimization

internal/tender/repository.go

@@ -40,6 +40,14 @@ func collectionName() string {
 	return "tenders"
 }
 
+// tenderSearchListProjection excludes large fields not needed for list/search API payloads.
+func tenderSearchListProjection() bson.M {
+	return bson.M{
+		"content_xml":        0,
+		"document_summaries": 0,
+	}
+}
+
 // tenderRepository implements TenderRepository interface using MongoDB ORM
 type tenderRepository struct {
 	ormRepo      orm.Repository[Tender]
@@ -332,6 +340,7 @@ func (r *tenderRepository) Search(ctx context.Context, form *SearchForm, paginat
 		Limit(pagination.Limit).
 		Skip(pagination.Offset).
 		SortBy(sort, sortOrder).
+		Projection(tenderSearchListProjection()).
 		Build()
 
 	result, err := r.ormRepo.FindAll(ctx, filter, paginationBuilder)