feat: highlight the nodes that the workflow passes through #918 (#1423)

### What problem does this PR solve?

feat: highlight the nodes that the workflow passes through #918

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/interfaces/database/flow.ts

@@ -6,7 +6,7 @@ export type DSLComponents = Record<string, IOperator>;
 export interface DSL {
   components: DSLComponents;
   history: any[];
-  path?: string[];
+  path?: string[][];
   answer?: any[];
   graph?: IGraph;
   messages: Message[];