feat: 完善文档中心与报销申请交互及侧边栏重构

后端优化编排器报销查询和本体检测精度，增强报销单草稿保
存和附件回填逻辑，前端重构侧边栏组件支持折叠和图标导
航，完善文档中心状态筛选和详情提示，报销创建和审批详情
页优化会话管理和费用明细交互，新增助手应用服务和预设动
作工具函数，补充单元测试覆盖。

web/tests/travel-reimbursement-guided-flow.test.mjs

@@ -4,7 +4,12 @@ import test from 'node:test'
 import { fileURLToPath } from 'node:url'
 
 import {
+  APPLICATION_WELCOME_QUICK_ACTIONS,
+  APPROVAL_WELCOME_QUICK_ACTIONS,
+  ASSISTANT_SESSION_MODE_OPTIONS,
   EXPENSE_WELCOME_QUICK_ACTIONS,
+  SESSION_TYPE_APPLICATION,
+  SESSION_TYPE_APPROVAL,
   SESSION_TYPE_EXPENSE,
   SESSION_TYPE_KNOWLEDGE,
   buildWelcomeQuickActions
@@ -40,6 +45,10 @@ import {
   selectGuidedQueryMode,
   shouldConfirmGuidedInterruption
 } from '../src/views/scripts/travelReimbursementGuidedFlowModel.js'
+import {
+  ASSISTANT_SCOPE_ACTION_SWITCH,
+  resolveAssistantScopeGuard
+} from '../src/utils/assistantSessionScope.js'
 
 const createViewScript = readFileSync(
   fileURLToPath(new URL('../src/views/scripts/TravelReimbursementCreateView.js', import.meta.url)),
@@ -53,8 +62,16 @@ const sessionStateScript = readFileSync(
   fileURLToPath(new URL('../src/views/scripts/useTravelReimbursementSessionState.js', import.meta.url)),
   'utf8'
 )
+const submitComposerScript = readFileSync(
+  fileURLToPath(new URL('../src/views/scripts/useTravelReimbursementSubmitComposer.js', import.meta.url)),
+  'utf8'
+)
 
-test('welcome quick actions are reduced to three guided local actions', () => {
+test('assistant session modes expose independent quick actions', () => {
+  assert.deepEqual(
+    ASSISTANT_SESSION_MODE_OPTIONS.map((item) => item.label),
+    ['申请助手', '报销助手', '审核助手', '财务知识助手']
+  )
   assert.deepEqual(
     EXPENSE_WELCOME_QUICK_ACTIONS.map((item) => item.label),
     ['快速发起报销', '查询单据状态', '差旅计算器']
@@ -69,6 +86,14 @@ test('welcome quick actions are reduced to three guided local actions', () => {
   )
   assert.ok(EXPENSE_WELCOME_QUICK_ACTIONS.every((item) => !item.prompt))
   assert.equal(buildWelcomeQuickActions(SESSION_TYPE_EXPENSE).length, 3)
+  assert.deepEqual(
+    buildWelcomeQuickActions(SESSION_TYPE_APPLICATION).map((item) => item.label),
+    APPLICATION_WELCOME_QUICK_ACTIONS.map((item) => item.label)
+  )
+  assert.deepEqual(
+    buildWelcomeQuickActions(SESSION_TYPE_APPROVAL).map((item) => item.label),
+    APPROVAL_WELCOME_QUICK_ACTIONS.map((item) => item.label)
+  )
   assert.notDeepEqual(
     buildWelcomeQuickActions(SESSION_TYPE_KNOWLEDGE).map((item) => item.label),
     EXPENSE_WELCOME_QUICK_ACTIONS.map((item) => item.label),
@@ -76,6 +101,34 @@ test('welcome quick actions are reduced to three guided local actions', () => {
   )
 })
 
+test('assistant session scope guard keeps business boundaries isolated', () => {
+  const expenseInApplication = resolveAssistantScopeGuard('我想报销的士票', SESSION_TYPE_APPLICATION)
+  assert.equal(expenseInApplication.targetSessionType, SESSION_TYPE_EXPENSE)
+  assert.match(expenseInApplication.text, /申请助手/)
+  assert.match(expenseInApplication.text, /报销助手/)
+  assert.equal(expenseInApplication.suggestedActions[0].action_type, ASSISTANT_SCOPE_ACTION_SWITCH)
+  assert.equal(expenseInApplication.suggestedActions[0].payload.session_type, SESSION_TYPE_EXPENSE)
+  assert.equal(expenseInApplication.suggestedActions[0].payload.carry_text, '我想报销的士票')
+
+  assert.equal(resolveAssistantScopeGuard('我想发起一笔费用申请', SESSION_TYPE_APPLICATION), null)
+  assert.equal(
+    resolveAssistantScopeGuard('帮我查询待我审核的单据', SESSION_TYPE_EXPENSE).targetSessionType,
+    SESSION_TYPE_APPROVAL
+  )
+  assert.equal(
+    resolveAssistantScopeGuard('差旅住宿标准是多少', SESSION_TYPE_EXPENSE).targetSessionType,
+    SESSION_TYPE_KNOWLEDGE
+  )
+  assert.equal(
+    resolveAssistantScopeGuard('报销标准是多少', SESSION_TYPE_EXPENSE).targetSessionType,
+    SESSION_TYPE_KNOWLEDGE
+  )
+  assert.equal(
+    resolveAssistantScopeGuard('解释这张单据酒店超标风险', SESSION_TYPE_EXPENSE, { hasActiveReviewPayload: true }),
+    null
+  )
+})
+
 test('guided reimbursement asks type first and walks travel fields in order', () => {
   const typeActions = buildGuidedExpenseTypeActions()
   assert.deepEqual(
@@ -177,6 +230,9 @@ test('guided flow state is serializable and restored through session state', ()
   assert.match(sessionStateScript, /guidedFlowState,\s*\n\s*insightPanelCollapsed/)
   assert.match(sessionStateScript, /function refreshWelcomeQuickActions/)
   assert.match(sessionStateScript, /buildWelcomeQuickActions\(/)
+  assert.match(sessionStateScript, /ASSISTANT_SESSION_TYPES\.reduce/)
+  assert.match(sessionStateScript, /props\.entrySource === 'application' \? SESSION_TYPE_APPLICATION : SESSION_TYPE_EXPENSE/)
+  assert.match(sessionStateScript, /const canRestorePersistedInitialState =[\s\S]*shouldPersistLocalSnapshot/)
 })
 
 test('guided flow is local until final confirmation or collected query handoff', () => {
@@ -184,6 +240,10 @@ test('guided flow is local until final confirmation or collected query handoff',
   assert.doesNotMatch(guidedFlowScript, /startExpenseClaimDraftFlowStep/)
   assert.doesNotMatch(guidedFlowScript, /review_action:\s*['"]save_draft['"]/)
   assert.match(createViewScript, /if \(await handleGuidedComposerSubmit\(options\)\) \{[\s\S]*return null[\s\S]*\}[\s\S]*return submitComposerInternal\(options\)/)
+  assert.match(createViewScript, /ASSISTANT_SCOPE_ACTION_SWITCH/)
+  assert.match(createViewScript, /actionPayload\.carry_text/)
+  assert.match(submitComposerScript, /resolveAssistantScopeGuard/)
+  assert.match(submitComposerScript, /skipScopeGuard/)
   assert.match(guidedFlowScript, /submitExistingComposer\(submitOptions\)/)
   assert.match(guidedFlowScript, /submitExistingComposer\(\{[\s\S]*pendingText:\s*'正在查询单据状态\.\.\.'/)
 })