feat(web): AI 工作台会话与文档卡片渲染增强

- aiConversationHtmlRenderer 识别单据记录类表格并渲染为卡片列表，新增删除申请单详情的禁用占位链接
- aiWorkbenchConversationStore 增加草稿删除后会话链接失效处理，避免点击已删除单据跳转
- aiApplicationPreviewActions 调整提交/草稿调用路径，PersonalWorkbenchAiMode 接入新的会话存储与渲染
- ConfirmDialog/TravelRequestDeleteDialog/useAppShell/AppShellRouteView 配套适配，同步更新相关前端测试

web/tests/ai-application-preview-actions.test.mjs

@@ -56,15 +56,27 @@ async function testSubmitActionUsesFastPreviewEndpoint() {
   assert.equal(body.context_json.application_preview.fields.transportMode, '火车')
 }
 
-async function testSaveDraftActionKeepsOrchestratorPath() {
+async function testSaveDraftActionUsesFastPreviewEndpoint() {
   let capturedUrl = ''
+  let capturedOptions = null
 
-  global.fetch = async (url) => {
+  global.fetch = async (url, options) => {
     capturedUrl = String(url)
+    capturedOptions = options
     return {
       ok: true,
       async json() {
-        return { status: 'succeeded', result: {} }
+        return {
+          status: 'succeeded',
+          result: {
+            draft_payload: {
+              claim_id: 'claim-fast-draft',
+              claim_no: 'AP-20260620-DRAFT',
+              status: 'draft',
+              approval_stage: '待提交'
+            }
+          }
+        }
       }
     }
   }
@@ -75,12 +87,17 @@ async function testSaveDraftActionKeepsOrchestratorPath() {
     currentUser: { username: 'zhangsan@example.com', name: '张三' }
   })
 
-  assert.equal(capturedUrl, '/api/v1/orchestrator/run')
+  assert.equal(capturedUrl, '/api/v1/reimbursements/application-preview-action')
+  assert.equal(capturedOptions.method, 'POST')
+  const body = JSON.parse(capturedOptions.body)
+  assert.equal(body.context_json.application_action, 'save_draft')
+  assert.equal(body.context_json.application_save_mode, true)
+  assert.equal(body.context_json.application_stage, 'expense_application')
 }
 
 async function run() {
   await testSubmitActionUsesFastPreviewEndpoint()
-  await testSaveDraftActionKeepsOrchestratorPath()
+  await testSaveDraftActionUsesFastPreviewEndpoint()
   console.log('ai-application-preview-actions tests passed')
 }