fix(web): optimize prompt change logic for LLM nodes (#20841) (#20865)

web/app/components/workflow/nodes/llm/use-config.ts

   }, [inputs, setInputs])
 
   const handlePromptChange = useCallback((newPrompt: PromptItem[] | PromptItem) => {
-    const newInputs = produce(inputRef.current, (draft) => {
+    const newInputs = produce(inputs, (draft) => {
       draft.prompt_template = newPrompt
     })
     setInputs(newInputs)
-  }, [setInputs])
+  }, [inputs, setInputs])
 
   const handleMemoryChange = useCallback((newMemory?: Memory) => {
     const newInputs = produce(inputs, (draft) => {

web/app/components/workflow/types.ts

   hint?: string
   options?: string[]
   value_selector?: ValueSelector
-  hide: boolean
+  hide?: boolean
 } & Partial<UploadFileSetting>
 
 export type ModelConfig = {