Feat: Fixed the issue where the prompt menu content was hidden #3221 (#8530)

### What problem does this PR solve?

Feat: Fixed the issue where the prompt menu content was hidden #3221

### Type of change


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

web/package-lock.json

         "remark-math": "^6.0.0",
         "sonner": "^1.7.4",
         "tailwind-merge": "^2.5.4",
+        "tailwind-scrollbar": "^3.1.0",
         "tailwindcss-animate": "^1.0.7",
         "umi": "^4.0.90",
         "umi-request": "^1.4.0",
         "url": "https://github.com/sponsors/dcastil"
       }
     },
+    "node_modules/tailwind-scrollbar": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmmirror.com/tailwind-scrollbar/-/tailwind-scrollbar-3.1.0.tgz",
+      "integrity": "sha512-pmrtDIZeHyu2idTejfV59SbaJyvp1VRjYxAjZBH0jnyrPRo6HL1kD5Glz8VPagasqr6oAx6M05+Tuw429Z8jxg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12.13.0"
+      },
+      "peerDependencies": {
+        "tailwindcss": "3.x"
+      }
+    },
     "node_modules/tailwindcss": {
       "version": "3.4.14",
       "resolved": "https://registry.npmmirror.com/tailwindcss/-/tailwindcss-3.4.14.tgz",

web/package.json

     "remark-math": "^6.0.0",
     "sonner": "^1.7.4",
     "tailwind-merge": "^2.5.4",
+    "tailwind-scrollbar": "^3.1.0",
     "tailwindcss-animate": "^1.0.7",
     "umi": "^4.0.90",
     "umi-request": "^1.4.0",

web/src/pages/agent/constant.tsx

   method: StringTransformMethod.Merge,
   split_ref: '',
   script: '',
-  delimiters: [],
+  delimiters: [StringTransformDelimiter.Comma],
   outputs: {
     result: {
       type: 'string',
   [Operator.WaitingDialogue]: [Operator.Begin],
   [Operator.Agent]: [Operator.Begin],
   [Operator.TavilySearch]: [Operator.Begin],
+  [Operator.StringTransform]: [Operator.Begin],
 };
 
 export const NodeMap = {

web/src/pages/agent/form/components/prompt-editor/variable-picker-plugin.tsx

     option: VariableOption | VariableInnerOption,
   ) => void;
 }) {
-  console.info('xxxx');
   return (
     <li
       key={option.key}
       options={buildNextOptions()}
       menuRenderFn={(anchorElementRef, { selectOptionAndCleanUp }) => {
         const nextOptions = buildNextOptions();
-        console.log('🚀 ~ nextOptions:', nextOptions);
         return anchorElementRef.current && nextOptions.length
           ? ReactDOM.createPortal(
               <div className="typeahead-popover w-[200px] p-2">
-                <ul>
+                <ul className="overflow-y-auto !scrollbar-thin overflow-x-hidden">
                   {nextOptions.map((option, i: number) => (
                     <VariablePickerMenuItem
                       index={i}

web/src/pages/agent/form/string-transform-form/use-values.ts

   StringTransformMethod,
 } from '../../constant';
 
+function transferDelimiters(formData: typeof initialStringTransformValues) {
+  return formData.method === StringTransformMethod.Merge
+    ? formData.delimiters[0]
+    : formData.delimiters;
+}
+
 export function useValues(node?: RAGFlowNodeType) {
   const values = useMemo(() => {
     const formData = node?.data?.form;
 
     if (isEmpty(formData)) {
-      return initialStringTransformValues;
+      return {
+        ...initialStringTransformValues,
+        delimiters: transferDelimiters(formData),
+      };
     }
 
     return {
       ...formData,
-      delimiters:
-        formData.method === StringTransformMethod.Merge
-          ? formData.delimiters[0]
-          : formData.delimiters,
+      delimiters: transferDelimiters(formData),
     };
   }, [node?.data?.form]);
 

web/tailwind.config.js

       },
     },
   },
-  plugins: [require('tailwindcss-animate'), require('@tailwindcss/line-clamp')],
+  plugins: [
+    require('tailwindcss-animate'),
+    require('@tailwindcss/line-clamp'),
+    require('tailwind-scrollbar'),
+  ],
 };