refactor(documents): rename document tree model

backend/internal/logic/dataset/handlers_test.go

@@ -90,7 +90,7 @@ func TestDatasetAPIConnectsSourcesItemsAndSyncTasks(t *testing.T) {
 		"projectId": project.Identity,
 	})
 	require.Equal(t, http.StatusCreated, deposited.Code)
-	var depositedDocument models.SaDocument
+	var depositedDocument models.SaDocumentTree
 	require.NoError(t, database.Where("project_id = ?", project.ID).First(&depositedDocument).Error)
 	require.Equal(t, item.Title+".md", depositedDocument.Name)
 	var depositedContent models.SaDocumentContent
@@ -241,7 +241,7 @@ func newDatasetTestDatabase(t *testing.T) *gorm.DB {
 		&models.SaDatasetSource{},
 		&models.SaDatasetItem{},
 		&models.SaProject{},
-		&models.SaDocument{},
+		&models.SaDocumentTree{},
 		&models.SaDocumentContent{},
 	))
 	return database

backend/internal/logic/dataset/service.go

@@ -75,7 +75,7 @@ type ItemPatch struct {
 
 type DepositResult struct {
 	DocumentIdentity string
-	ProjectIdentity string
+	ProjectIdentity  string
 }
 
 type SourceRecord struct {
@@ -363,9 +363,9 @@ func (s *Service) DepositItem(userID uint, itemIdentity, projectIdentity string)
 	if !strings.HasSuffix(strings.ToLower(name), ".md") {
 		name += ".md"
 	}
-	var document models.SaDocument
+	var document models.SaDocumentTree
 	err = s.db.Transaction(func(tx *gorm.DB) error {
-		document = models.SaDocument{
+		document = models.SaDocumentTree{
 			ProjectID: project.ID, CreatedBy: userID, Kind: models.DocumentKindFile,
 			Name: name, NormalizedName: strings.ToLower(name), Extension: ".md",
 			MimeType: "text/markdown; charset=utf-8", Size: int64(len([]byte(body))),