Fix: Fixed the issue where the error prompt box on the Agent page would be covered #3221 (#8992)

### What problem does this PR solve?

Fix: Fixed the issue where the error prompt box on the Agent page would
be covered #3221

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/utils/api.ts

@@ -148,6 +148,9 @@ export default {
   trace: `${api_host}/canvas/trace`,
   // agent
   inputForm: `${api_host}/canvas/input_form`,
+  fetchVersionList: (id: string) => `${api_host}/canvas/getlistversion/${id}`,
+  fetchVersion: (id: string) => `${api_host}/canvas/getversion/${id}`,
+  fetchCanvas: (id: string) => `${api_host}/canvas/get/${id}`,
 
   // mcp server
   listMcpServer: `${api_host}/mcp_server/list`,