feat: 优化内容模板变量引用与换行展示

- 内容模板直接引用上游参数并自动维护运行参数

- 支持 Enjoy 变量标签编辑及中文变量显示

- 保留试运行与聊天运行页的模板输出换行

easyflow-ui-admin/app/src/views/ai/workflow/components/ExecResultItem.vue

@@ -69,7 +69,7 @@ function makeItem(item: any, index: number) {
           :src="`${item}`"
           class="h-3/5 w-full"
         ></audio>
-        <div v-if="contentType === 'text'">
+        <div v-if="contentType === 'text'" class="whitespace-pre-wrap">
           {{ typeof item === 'string' ? item : JSON.stringify(item) }}
         </div>
         <div v-if="contentType === 'other' || contentType === 'file'">

easyflow-ui-admin/app/src/views/ai/workflow/components/WorkflowFinalOutput.component.test.ts

@@ -1,4 +1,5 @@
 import { mount } from '@vue/test-utils';
+import { nextTick } from 'vue';
 
 import { describe, expect, it, vi } from 'vitest';
 
@@ -44,4 +45,21 @@ describe('workflow final output', () => {
     expect(wrapper.text()).toContain('复制全部');
     expect(wrapper.findAll('button')).toHaveLength(3);
   });
+
+  it('renders scalar line breaks in the workflow chat result', async () => {
+    const wrapper = mount(WorkflowFinalOutput, {
+      props: {
+        output: {
+          output: '问题：你是谁\n答案：你好',
+        },
+      },
+    });
+
+    await nextTick();
+
+    const textOutput = wrapper.get('.workflow-final-output__text');
+    expect(textOutput.text()).toContain('问题：你是谁');
+    expect(textOutput.text()).toContain('答案：你好');
+    expect(textOutput.find('br').exists()).toBe(true);
+  });
 });

easyflow-ui-admin/app/src/views/ai/workflow/components/__tests__/ExecResultItem.test.ts

@@ -0,0 +1,21 @@
+import { mount } from '@vue/test-utils';
+
+import { describe, expect, it } from 'vitest';
+
+import ExecResultItem from '../ExecResultItem.vue';
+
+describe('execResultItem', () => {
+  it('preserves line breaks for text results', () => {
+    const wrapper = mount(ExecResultItem, {
+      props: {
+        contentType: 'text',
+        defName: 'output',
+        result: ['问题：你是谁\n答案：你好'],
+        resultCount: 1,
+      },
+    });
+
+    const textResult = wrapper.get('.whitespace-pre-wrap');
+    expect(textResult.text()).toContain('问题：你是谁\n答案：你好');
+  });
+});