feat: 重塑技能库与统一文件工作台

- 统一分类检索、新建导入和发布交互

- 使用单一文件工作台编辑全部 Skill 资源

- 下沉可复用 Markdown 与代码编辑能力

easyflow-ui-admin/packages/effects/common-ui/src/components/document-editor/DocumentEditorWorkbench.vue

@@ -164,8 +164,7 @@ onBeforeUnmount(() =>
   overflow: hidden;
   background: hsl(var(--surface-panel));
   border: 1px solid hsl(var(--line-subtle));
-  border-radius: var(--radius-panel);
-  box-shadow: var(--shadow-subtle);
+  border-radius: var(--radius-toolbar);
 }
 
 .document-editor-workbench__tree {
@@ -177,6 +176,7 @@ onBeforeUnmount(() =>
 }
 
 .document-editor-workbench__main {
+  position: relative;
   display: flex;
   flex-direction: column;
   min-width: 0;

easyflow-ui-admin/packages/effects/common-ui/src/components/document-editor/FileTreeNode.vue

@@ -5,13 +5,13 @@ import { computed, ref } from 'vue';
 
 import {
   ChevronRight,
+  Ellipsis,
   File,
   FileCode2,
   FileImage,
   FileText,
   FolderClosed,
   FolderOpen,
-  Ellipsis,
   Plus,
 } from '@easyflow/icons';
 
@@ -69,6 +69,7 @@ function activate() {
   emit('focusPath', props.node.path);
   if (isDirectory.value) {
     expanded.value = !expanded.value;
+    return;
   }
   emit('select', props.node);
 }

easyflow-ui-admin/packages/effects/common-ui/src/components/document-editor/__tests__/FileTreePanel.test.ts

@@ -138,7 +138,7 @@ describe('file tree panel keyboard navigation', () => {
     expectFocused('references/nested/deep.md');
   });
 
-  it('selects files and directories with Enter or Space', async () => {
+  it('selects files while directory activation only toggles expansion', async () => {
     const wrapper = mountTree();
 
     treeItem('references/guide.md')?.dispatchEvent(
@@ -153,10 +153,7 @@ describe('file tree panel keyboard navigation', () => {
     );
     await nextTick();
     expect(treeItem('references')?.getAttribute('aria-expanded')).toBe('false');
-    expect(wrapper.emitted('select')).toHaveLength(2);
-    expect(wrapper.emitted('select')?.[1]?.[0]).toMatchObject({
-      path: 'references',
-    });
+    expect(wrapper.emitted('select')).toHaveLength(1);
   });
 
   it('emits contextual create and file operations from row actions', async () => {