tender duplication fix

internal/notice/entity.go

@@ -14,6 +14,8 @@ type Notice struct {
 	ContractNoticeID          string               `bson:"contract_notice_id" json:"contract_notice_id"`
 	NoticePublicationID       string               `bson:"notice_publication_id" json:"notice_publication_id"`
 	ContractFolderID          string               `bson:"contract_folder_id" json:"contract_folder_id"`
+	// ProcurementProjectID is UBL ProcurementProject/ID — stable across per-lot notices for one procedure.
+	ProcurementProjectID      string               `bson:"procurement_project_id,omitempty" json:"procurement_project_id,omitempty"`
 	NoticeTypeCode            string               `bson:"notice_type_code" json:"notice_type_code"`
 	FormType                  string               `bson:"form_type,omitempty" json:"form_type,omitempty"`
 	NoticeSubTypeCode         string               `bson:"notice_sub_type_code" json:"notice_sub_type_code"`

internal/notice/repository.go

@@ -41,6 +41,9 @@ func NewRepository(mongoManager *orm.ConnectionManager, logger logger.Logger) Re
 		*orm.NewIndex("processing_metadata_processed_idx", bson.D{{Key: "processing_metadata.processed", Value: 1}}),
 		*orm.NewIndex("main_classification_idx", bson.D{{Key: "main_classification", Value: 1}}),
 		*orm.NewIndex("contract_notice_id_idx", bson.D{{Key: "contract_notice_id", Value: 1}}),
+		// One row per TED ContractNoticeID when present (parallel scrape races).
+		*orm.CreateUniqueIndex("contract_notice_id_unique", bson.D{{Key: "contract_notice_id", Value: 1}}).
+			WithPartialFilterExpression(bson.M{"contract_notice_id": bson.M{"$type": "string", "$ne": ""}}),
 	}
 
 	// Create indexes