feat(web): 文档查询意图补充风险过滤与 X 天前范围

- aiDocumentQueryIntent 新增风险等级过滤（无/高/中/低/有风险）与 N 天前日期范围解析
- aiDocumentQueryModel/aiConversationHtmlRenderer 渲染适配风险过滤标签
- useWorkbenchAiDocumentQueryFlow/aiWorkbenchConversationStore 会话流转适配命令意图
- 更新 ai-document-query-model/ai-conversation-html-renderer/assistant-session-draft-delete 测试

web/tests/ai-conversation-html-renderer.test.mjs

@@ -115,6 +115,15 @@ test('AI conversation renderer renders document detail action links as buttons',
   assert.doesNotMatch(rendered, /target="_blank"[\s\S]{0,120}#ai-open-document-detail/)
 })
 
+test('AI conversation renderer renders deleted document detail actions as disabled buttons', () => {
+  const rendered = renderAiConversationHtml('[单据已删除](#ai-deleted-document-detail:claim-deleted-1)')
+
+  assert.match(rendered, /class="ai-html-action-link ai-html-action-link-document is-disabled"/)
+  assert.match(rendered, /aria-disabled="true"/)
+  assert.match(rendered, /data-ai-action="deleted-document-detail"/)
+  assert.doesNotMatch(rendered, /href="#ai-deleted-document-detail/)
+})
+
 test('AI conversation renderer renders images as html and rejects unsafe image sources', () => {
   const rendered = renderAiConversationHtml([
     '### 图片材料',

web/tests/ai-document-query-model.test.mjs

@@ -9,6 +9,8 @@ import {
   resolveAiDocumentQueryIntent
 } from '../src/utils/aiDocumentQueryModel.js'
 import { renderAiConversationHtml } from '../src/utils/aiConversationHtmlRenderer.js'
+import { resolveWorkbenchIntentActionRoute } from '../src/composables/workbenchAiMode/workbenchIntentActionPolicy.js'
+import { resolveWorkbenchIntentFrame } from '../src/composables/workbenchAiMode/workbenchIntentFrameModel.js'
 
 const today = '2026-06-20'
 
@@ -68,6 +70,21 @@ test('AI document query intent detects approval document questions', () => {
   assert.equal(intent?.sourceLabel, '待我审核的单据')
 })
 
+test('AI document query intent detects short approval workbench commands', () => {
+  const reviewIntent = resolveAiDocumentQueryIntent('我要审核', { today })
+  const todoIntent = resolveAiDocumentQueryIntent('待办审批', { today })
+
+  assert.equal(reviewIntent?.source, 'approval')
+  assert.equal(reviewIntent?.documentType, 'all')
+  assert.equal(reviewIntent?.sourceLabel, '待我审核的单据')
+  assert.equal(todoIntent?.source, 'approval')
+  assert.equal(todoIntent?.sourceLabel, '待我审核的单据')
+})
+
+test('AI document query intent keeps approval policy questions out of document query', () => {
+  assert.equal(resolveAiDocumentQueryIntent('审批规则怎么走', { today }), null)
+})
+
 test('AI document query keeps explicit own-document scope separate from accessible documents', () => {
   const intent = resolveAiDocumentQueryIntent('我名下有哪些单据？', { today })
 
@@ -136,6 +153,66 @@ test('AI document query combines natural-language filters', () => {
   assert.match(buildAiDocumentQueryConditionSummary(intent), /金额：不少于1000元/)
 })
 
+test('AI document query filters draft candidates by relative day', () => {
+  const intent = resolveAiDocumentQueryIntent('我的 3天前 草稿单据', { today: '2026-06-24' })
+  const records = filterAiDocumentQueryRecords([
+    {
+      id: 'draft-3-days-ago',
+      claim_no: 'AP-20260621001',
+      document_type_code: 'application',
+      status: 'draft',
+      reason: '三天前保存的申请草稿',
+      created_at: '2026-06-21T09:00:00Z'
+    },
+    {
+      id: 'draft-yesterday',
+      claim_no: 'AP-20260623001',
+      document_type_code: 'application',
+      status: 'draft',
+      reason: '昨天保存的申请草稿',
+      created_at: '2026-06-23T09:00:00Z'
+    }
+  ], intent)
+
+  assert.equal(intent?.source, 'mine')
+  assert.equal(intent?.statusFilter?.label, '草稿')
+  assert.equal(intent?.timeRange?.start, '2026-06-21')
+  assert.equal(intent?.timeRange?.end, '2026-06-21')
+  assert.deepEqual(records.map((record) => record.documentNo), ['AP-20260621001'])
+})
+
+test('AI document query filters no-risk approval application candidates', () => {
+  const intent = resolveAiDocumentQueryIntent('待我审核 无风险 申请单', { today })
+  const payload = [{
+    id: 'approval-no-risk',
+    claim_no: 'AP-NORISK-001',
+    document_type_code: 'application',
+    expense_type: 'travel_application',
+    status: 'submitted',
+    reason: '合规差旅申请',
+    created_at: '2026-06-20T09:00:00Z',
+    risk_flags_json: [],
+    risk_summary: '无'
+  }, {
+    id: 'approval-high-risk',
+    claim_no: 'AP-RISK-001',
+    document_type_code: 'application',
+    expense_type: 'travel_application',
+    status: 'submitted',
+    reason: '住宿超标申请',
+    created_at: '2026-06-20T10:00:00Z',
+    risk_flags_json: [{ severity: 'high', summary: '住宿超标' }],
+    risk_summary: '住宿超标'
+  }]
+  const records = filterAiDocumentQueryRecords({ items: payload, querySource: 'approval' }, intent)
+
+  assert.equal(intent?.source, 'approval')
+  assert.equal(intent?.documentType, 'application')
+  assert.equal(intent?.riskFilter?.level, 'none')
+  assert.match(buildAiDocumentQueryConditionSummary(intent), /风险：无风险/)
+  assert.deepEqual(records.map((record) => record.documentNo), ['AP-NORISK-001'])
+})
+
 test('AI document query excludes undated rows when a time condition is present', () => {
   const intent = resolveAiDocumentQueryIntent('我2月有哪些单据？', { today })
   const records = filterAiDocumentQueryRecords([
@@ -246,6 +323,28 @@ test('AI document query html cards render as trusted card markup', () => {
   assert.doesNotMatch(rendered, /<blockquote>/)
 })
 
+test('AI document query keeps high-risk command guidance in trusted rendered markup', () => {
+  const frame = resolveWorkbenchIntentFrame('删除申请单草稿', { today: '2026-06-24' })
+  const route = resolveWorkbenchIntentActionRoute(frame)
+  const intent = resolveAiDocumentQueryIntent(route.queryPrompt, { today: '2026-06-24' })
+  const rendered = renderAiConversationHtml(buildAiDocumentQueryMessage(intent, [{
+    id: 'draft-application-1',
+    claim_no: 'AP-DRAFT-001',
+    document_type_code: 'application',
+    expense_type: 'travel_application',
+    status: 'draft',
+    reason: '测试申请草稿',
+    created_at: '2026-06-24T09:00:00Z'
+  }], { commandFrame: frame }))
+
+  assert.match(rendered, /<h3 class="ai-html-title">已查询到相关单据<\/h3>/)
+  assert.match(rendered, /<section class="ai-document-command-guidance" aria-label="高风险操作提示">/)
+  assert.match(rendered, /系统不会直接删除相关单据/)
+  assert.match(rendered, /进入单据详情核对后再操作/)
+  assert.match(rendered, /<section class="ai-document-card-list" aria-label="单据查询结果">/)
+  assert.match(rendered, /进入详情确认删除/)
+})
+
 test('AI document query trusted html rejects unsafe card markup', () => {
   const rendered = renderAiConversationHtml([
     '### 查询结果',

web/tests/assistant-session-draft-delete.test.mjs

@@ -5,6 +5,7 @@ import { fileURLToPath } from 'node:url'
 
 import {
   markAiWorkbenchConversationDraftDeleted,
+  markAiWorkbenchConversationDocumentDeleted,
   loadAiWorkbenchConversationHistory,
   saveAiWorkbenchConversation
 } from '../src/utils/aiWorkbenchConversationStore.js'
@@ -120,6 +121,54 @@ test('deleting an application draft marks AI workbench detail links as unavailab
   assert.equal(loadAiWorkbenchConversationHistory(user)[0].messages.length, 2)
 })
 
+test('deleted document detail links are disabled for reopened AI conversations', () => {
+  installWindowStub()
+  const user = { username: 'zhangsan@example.com' }
+
+  saveAiWorkbenchConversation(user, {
+    id: 'conversation-document-delete-candidate',
+    title: '删除申请单草稿',
+    messages: [
+      {
+        id: 'assistant-document-candidates',
+        role: 'assistant',
+        content: [
+          '### 已查询到相关单据',
+          '',
+          '[进入详情确认删除](#ai-open-document-detail:claim_id%3Dclaim-draft-2%26claim_no%3DAP-DRAFT-002)'
+        ].join('\n')
+      }
+    ]
+  })
+
+  const nextHistory = markAiWorkbenchConversationDocumentDeleted(user, {
+    claimId: 'claim-draft-2',
+    claimNo: 'AP-DRAFT-002'
+  })
+  const conversation = nextHistory.find((item) => item.id === 'conversation-document-delete-candidate')
+
+  assert.ok(conversation)
+  assert.match(conversation.messages[0].content, /#ai-deleted-document-detail:/)
+  assert.doesNotMatch(conversation.messages[0].content, /#ai-open-document-detail:/)
+  assert.match(conversation.messages[0].content, /\[单据已删除\]/)
+  assert.match(conversation.messages.at(-1).content, /单据 AP-DRAFT-002 已经删除或不可访问/)
+  assert.match(conversation.messages.at(-1).content, /该历史入口已失效，请返回单据列表重新查询/)
+  assert.equal(loadAiWorkbenchConversationHistory(user)[0].messages.length, 2)
+})
+
+test('AI workbench validates document detail links before opening stale history entries', () => {
+  const aiMode = readFileSync(
+    fileURLToPath(new URL('../src/composables/workbenchAiMode/usePersonalWorkbenchAiMode.js', import.meta.url)),
+    'utf8'
+  )
+
+  assert.match(aiMode, /fetchExpenseClaimDetail/)
+  assert.match(aiMode, /markAiWorkbenchConversationDocumentDeleted/)
+  assert.match(aiMode, /async function handleAiAnswerMarkdownClick/)
+  assert.match(aiMode, /await ensureAiDocumentDetailStillAvailable/)
+  assert.match(aiMode, /已将这条历史入口标记为不可查看/)
+})
+
 test('saving a draft keeps the financial assistant open for continued work', () => {
   const appShellScript = readFileSync(
     fileURLToPath(new URL('../src/composables/useAppShell.js', import.meta.url)),