fix(canvas): 分镜视频生成 - 正确附加角色场景与声音资产及镜头台词

backend/internal/repository/project_workbench_read.go

@@ -109,6 +109,27 @@ func (r *Repository) ProjectUnitShotAssetReferences(projectID string, unitID str
 	return references, err
 }
 
+func (r *Repository) ProjectAssetVersionsByIDs(projectID string, versionIDs []string) ([]model.AssetVersion, error) {
+	if len(versionIDs) == 0 {
+		return []model.AssetVersion{}, nil
+	}
+	var versions []model.AssetVersion
+	err := r.db.Table("asset_versions").Select("asset_versions.*").
+		Joins("JOIN project_asset_links ON project_asset_links.asset_id = asset_versions.asset_id").
+		Where("project_asset_links.project_id = ? AND asset_versions.id IN ?", projectID, versionIDs).
+		Find(&versions).Error
+	return versions, err
+}
+
+func (r *Repository) AssetRepresentationsByVersionIDs(versionIDs []string) ([]model.AssetRepresentation, error) {
+	if len(versionIDs) == 0 {
+		return []model.AssetRepresentation{}, nil
+	}
+	var representations []model.AssetRepresentation
+	err := r.db.Where("asset_version_id IN ?", versionIDs).Order("asset_version_id asc, role asc, created_at asc").Find(&representations).Error
+	return representations, err
+}
+
 func (r *Repository) ProjectUnitAssetCandidates(projectID string, unitID string) ([]model.ProjectAssetCandidate, error) {
 	var candidates []model.ProjectAssetCandidate
 	err := r.db.Where("project_id = ? AND (unit_id = ? OR unit_id = '')", projectID, unitID).Order("created_at asc").Find(&candidates).Error