feat: add library elements to dash service (#114016)

apps/dashboard/pkg/migration/schemaversion/migrations.go

@@ -27,12 +27,27 @@ type DataSourceIndexProvider interface {
 	Index(ctx context.Context) *DatasourceIndex
 }
 
+type LibraryElementInfo struct {
+	UID         string
+	Name        string
+	Kind        int64
+	Type        string
+	Description string
+	FolderUID   string
+}
+
+type LibraryElementIndexProvider interface {
+
+	// GetLibraryElementInfo returns library element information for use in migrations.
+	GetLibraryElementInfo(ctx context.Context) []LibraryElementInfo
+}
+
 type PanelPluginInfo struct {
 	ID      string
 	Version string
 }
 
-func GetMigrations(dsIndexProvider DataSourceIndexProvider) map[int]SchemaVersionMigrationFunc {
+func GetMigrations(dsIndexProvider DataSourceIndexProvider, _ LibraryElementIndexProvider) map[int]SchemaVersionMigrationFunc {
 	return map[int]SchemaVersionMigrationFunc{
 		2:  V2,
 		3:  V3,