feat(web): 工作台 AI 模式报销预审与文档查询模型拆分

- 新增 aiApplicationPrecheckModel/aiDocumentQueryModel/aiApplicationPreviewActions/aiConversationHtmlRenderer 四个独立模型与服务，按职责从主组件拆出
- PersonalWorkbenchAiMode 接入拆分后的预审、文档查询与 HTML 渲染逻辑，配合 markdown 工具增强结构化展示
- 文档中心与归档筛选、风险可见性、申请预览等工具同步适配，补充对应单元测试
- 新增 AI 文档卡片背景资源

web/tests/workbench-ai-mode-expense-scene-action.test.mjs

@@ -48,7 +48,13 @@ test('AI mode offers an inline application shortcut when no candidate applicatio
   assert.match(aiMode, /!candidates\.length/)
   assert.match(aiMode, /ai_application_start_inline/)
   assert.match(aiMode, /buildRequiredApplicationMissingText/)
-  assert.match(aiMode, /function startAiApplicationDraft/)
+  assert.match(aiMode, /function startAiApplicationPreview/)
+  assert.match(aiMode, /buildLocalApplicationPreview/)
+  assert.match(aiMode, /buildLocalApplicationPreviewMessage/)
+  assert.match(aiMode, /refreshApplicationPreviewEstimate/)
+  assert.match(aiMode, /applicationPreview:\s*preview/)
+  assert.doesNotMatch(aiMode, /function startAiApplicationDraft/)
+  assert.doesNotMatch(aiMode, /buildAiApplicationStepPrompt/)
 })
 
 test('AI mode steward reimbursement action opens expense scene selection locally', () => {
@@ -72,9 +78,28 @@ test('AI mode attaches required application lookup result before steward plannin
   assert.match(aiMode, /await attachAiRequiredApplicationGate\(planRequest, prompt\)/)
 })
 
-test('AI mode automatically continues required application gate decisions from steward plan', () => {
-  assert.match(aiMode, /function continueAiRequiredApplicationGateFromPlan\(normalizedPlan\)/)
-  assert.match(aiMode, /flow\.flowId === 'travel_application'[\s\S]*startAiApplicationDraft\('travel', '差旅费'/)
-  assert.match(aiMode, /flow\.flowId === 'travel_reimbursement'[\s\S]*startAiExpenseDraft\('travel', '差旅费', true/)
-  assert.match(aiMode, /continueAiRequiredApplicationGateFromPlan\(normalizedPlan\)/)
+test('AI mode handles document query prompts locally before steward planning', () => {
+  assert.match(aiMode, /resolveAiDocumentQueryIntent\(prompt/)
+  assert.match(aiMode, /async function handleAiDocumentQueryIntent/)
+  assert.match(aiMode, /buildAiDocumentQueryConditionSummary/)
+  assert.match(aiMode, /filterAiDocumentQueryRecords\(payload, intent\)/)
+  assert.match(aiMode, /fetchApprovalExpenseClaims/)
+  assert.match(aiMode, /buildAiDocumentQueryMessage/)
+  assert.match(aiMode, /AI_DOCUMENT_QUERY_STEP_DELAY_MS/)
+  assert.match(aiMode, /async function updateAiDocumentQueryThinking/)
+  assert.match(aiMode, /解析自然语言筛选条件/)
+  assert.match(aiMode, /查询业务单据接口/)
+  assert.match(aiMode, /组合筛选单据/)
+  assert.match(aiMode, /if \(await handleAiDocumentQueryIntent\(prompt, pendingMessage\)\) \{[\s\S]*return[\s\S]*\}/)
+  assert.match(aiMode, /emit\('open-document', buildAiDocumentDetailRequest\(detailReference\)\)/)
+})
+
+test('AI mode continues required application gate decisions into table preview from steward plan', () => {
+  assert.match(aiMode, /function continueAiRequiredApplicationGateFromPlan\(normalizedPlan, prompt = ''\)/)
+  assert.match(aiMode, /flow\.flowId === 'travel_application'[\s\S]*void startAiApplicationPreview\('travel', '差旅费', prompt/)
+  assert.match(aiMode, /flow\.flowId === 'travel_reimbursement'[\s\S]*startAiExpenseDraft\('travel', '差旅费', true/)
+  assert.match(aiMode, /continueAiRequiredApplicationGateFromPlan\(normalizedPlan, prompt\)/)
+  assert.match(aiMode, /class="workbench-ai-application-preview application-preview-shell"/)
+  assert.match(aiMode, /resolveInlineApplicationPreviewRows\(message\)/)
+  assert.match(aiMode, /commitInlineApplicationPreviewEditor\(message\)/)
 })