feat: enchance prompt and code (#23633)

Co-authored-by: stream <stream@dify.ai>
Co-authored-by: Stream <1542763342@qq.com>
Co-authored-by: Stream <Stream_2@qq.com>
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

web/app/components/workflow/hooks/use-workflow-variables.ts

@@ -10,6 +10,7 @@ import type {
 } from '@/app/components/workflow/types'
 import { useIsChatMode } from './use-workflow'
 import { useStoreApi } from 'reactflow'
+import type { Type } from '../nodes/llm/types'
 
 export const useWorkflowVariables = () => {
   const { t } = useTranslation()
@@ -106,7 +107,7 @@ export const useWorkflowVariableType = () => {
       isChatMode,
       isConstant: false,
     })
-    return type
+    return type as unknown as Type
   }
 
   return getVarType