feat: 完成工作流多文件文档解析闭环

- 支持文档解析节点批量解析并收口为 documents 轻量输出

- 收口引用树、节点输出展示与旧工作流固定输出兼容

- 修复共享按钮点击事件，恢复多个节点加号交互

easyflow-ui-admin/packages/tinyflow-ui/src/utils/workflowNodeFields.test.ts

@@ -359,8 +359,12 @@ describe('workflow node fields', () => {
 
     expect(documentsParameter?.displayName).toBe('知识库 > documents');
     expect(documentsParameter?.formLabel).toBe('知识库 > documents');
-    expect(contentParameter?.displayName).toBe('知识库 > documents.content');
-    expect(contentParameter?.formLabel).toBe('知识库 > documents.content');
+    expect(documentsParameter?.pathLabel).toBe('documents');
+    expect(documentsParameter?.isCollection).toBe(true);
+    expect(contentParameter?.displayName).toBe('知识库 > documents.[].content');
+    expect(contentParameter?.formLabel).toBe('知识库 > documents.[].content');
+    expect(contentParameter?.pathLabel).toBe('documents.[].content');
+    expect(contentParameter?.itemTypeLabel).toBe('数组项字段');
   });
 
   it('uses document node child outputs for reference display', () => {
@@ -385,14 +389,6 @@ describe('workflow node fields', () => {
               },
             ],
           },
-          {
-            name: 'contents',
-            formLabel: '逐文件内容',
-          },
-          {
-            name: 'count',
-            formLabel: '数量',
-          },
         ],
       },
     };
@@ -419,13 +415,9 @@ describe('workflow node fields', () => {
     expect(parameters.find((item) => item.name === 'doc_1.documents')?.displayName)
       .toBe('文档解析 > documents');
     expect(parameters.find((item) => item.name === 'doc_1.documents.fileName')?.displayName)
-      .toBe('文档解析 > documents.fileName');
+      .toBe('文档解析 > documents.[].fileName');
     expect(parameters.find((item) => item.name === 'doc_1.documents.content')?.displayName)
-      .toBe('文档解析 > documents.content');
-    expect(parameters.find((item) => item.name === 'doc_1.contents')?.displayName)
-      .toBe('文档解析 > contents');
-    expect(parameters.find((item) => item.name === 'doc_1.count')?.displayName)
-      .toBe('文档解析 > count');
+      .toBe('文档解析 > documents.[].content');
   });
 
   it('applies default binding to llm user prompt after connect', () => {