feat: 新增归档中心页面并完善知识库与报销查询能力

新增前端归档中心视图及相关工具函数，扩充知识库文档分类和
提取器支持多种格式，增强编排器报销查询的多维度检索，优
化本体规则和用户代理审核消息，前端完善报销创建和审批详
情交互细节，补充单元测试覆盖。

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

@@ -0,0 +1,130 @@
+import assert from 'node:assert/strict'
+import { readFileSync } from 'node:fs'
+import test from 'node:test'
+import { fileURLToPath } from 'node:url'
+
+import {
+  clearAssistantSessionSnapshotForDraftClaim,
+  readAssistantSessionSnapshot,
+  writeAssistantSessionSnapshot
+} from '../src/utils/assistantSessionSnapshot.js'
+
+function installWindowStub() {
+  const store = new Map()
+  const events = []
+
+  globalThis.CustomEvent = class CustomEvent {
+    constructor(type, options = {}) {
+      this.type = type
+      this.detail = options.detail || {}
+    }
+  }
+  globalThis.window = {
+    localStorage: {
+      getItem(key) {
+        return store.has(key) ? store.get(key) : null
+      },
+      setItem(key, value) {
+        store.set(key, String(value))
+      },
+      removeItem(key) {
+        store.delete(key)
+      }
+    },
+    dispatchEvent(event) {
+      events.push(event)
+      return true
+    }
+  }
+
+  return { events }
+}
+
+test('assistant snapshot is cleared only when it belongs to the deleted draft claim', () => {
+  const { events } = installWindowStub()
+
+  writeAssistantSessionSnapshot('emp-1', 'expense', {
+    draftClaimId: 'claim-1',
+    messages: [{ role: 'assistant', text: '已保存草稿 EXP-001' }]
+  })
+
+  assert.equal(clearAssistantSessionSnapshotForDraftClaim('emp-1', 'claim-2', 'expense'), false)
+  assert.equal(readAssistantSessionSnapshot('emp-1', 'expense')?.state?.draftClaimId, 'claim-1')
+
+  assert.equal(clearAssistantSessionSnapshotForDraftClaim('emp-1', 'claim-1', 'expense'), true)
+  assert.equal(readAssistantSessionSnapshot('emp-1', 'expense'), null)
+  assert.equal(events.at(-1)?.detail?.action, 'clear')
+})
+
+test('claim delete flow invalidates the matching financial assistant session', () => {
+  const appShellScript = readFileSync(
+    fileURLToPath(new URL('../src/composables/useAppShell.js', import.meta.url)),
+    'utf8'
+  )
+  const appShellRouteView = readFileSync(
+    fileURLToPath(new URL('../src/views/AppShellRouteView.vue', import.meta.url)),
+    'utf8'
+  )
+  const createViewScript = readFileSync(
+    fileURLToPath(new URL('../src/views/scripts/TravelReimbursementCreateView.js', import.meta.url)),
+    'utf8'
+  )
+
+  assert.match(appShellScript, /clearAssistantSessionSnapshotForDraftClaim/)
+  assert.match(appShellScript, /async function handleRequestDeleted\(payload = \{\}\)/)
+  assert.match(appShellScript, /smartEntryInvalidatedDraftClaimId\.value = deletedClaimId/)
+  assert.match(appShellRouteView, /:invalidated-draft-claim-id="smartEntryInvalidatedDraftClaimId"/)
+  assert.match(createViewScript, /invalidatedDraftClaimId/)
+  assert.match(createViewScript, /function clearExpenseSessionForDeletedClaim\(claimId\)/)
+  assert.match(createViewScript, /toast\('该草稿单据已删除，相关财务助手会话已清空。'\)/)
+})
+
+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)),
+    'utf8'
+  )
+  const handleDraftSavedBlock = appShellScript.match(
+    /async function handleDraftSaved\(payload = \{\}\) \{[\s\S]*?\r?\n  \}\r?\n\r?\n  function openRequestDetail/
+  )?.[0]
+
+  assert.ok(handleDraftSavedBlock)
+  assert.match(handleDraftSavedBlock, /if \(status === 'submitted'\) \{[\s\S]*smartEntryOpen\.value = false/)
+  assert.match(handleDraftSavedBlock, /if \(status === 'submitted'\) \{[\s\S]*router\.push\(\{ name: 'app-requests' \}\)/)
+  assert.match(handleDraftSavedBlock, /return[\s\S]*单据已保存为草稿，可继续上传票据或补充信息。/)
+
+  const draftSuccessIndex = handleDraftSavedBlock.indexOf('单据已保存为草稿，可继续上传票据或补充信息。')
+  assert.equal(handleDraftSavedBlock.indexOf('smartEntryOpen.value = false', draftSuccessIndex), -1)
+  assert.equal(handleDraftSavedBlock.indexOf("router.push({ name: 'app-requests' })", draftSuccessIndex), -1)
+})
+
+test('detail smart entry is scoped to the current claim instead of the latest conversation', () => {
+  const detailViewScript = readFileSync(
+    fileURLToPath(new URL('../src/views/scripts/TravelRequestDetailView.js', import.meta.url)),
+    'utf8'
+  )
+  const appShellScript = readFileSync(
+    fileURLToPath(new URL('../src/composables/useAppShell.js', import.meta.url)),
+    'utf8'
+  )
+  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'
+  )
+
+  assert.match(detailViewScript, /restoreLatestConversation:\s*false/)
+  assert.match(detailViewScript, /scope:\s*claimId[\s\S]*type:\s*'claim'[\s\S]*claimId/)
+  assert.match(appShellScript, /function isDetailClaimScopedPayload\(payload = \{\}\)/)
+  assert.match(appShellScript, /if \(isDetailClaimScopedPayload\(payload\)\) \{[\s\S]*return null[\s\S]*\}/)
+  assert.match(sessionStateScript, /const shouldPersistLocalSnapshot = props\.entrySource !== 'detail'/)
+  assert.match(sessionStateScript, /if \(!shouldPersistLocalSnapshot\) \{[\s\S]*return[\s\S]*\}/)
+  assert.match(submitComposerScript, /function resolveDetailScopedClaimId\(\)/)
+  assert.match(submitComposerScript, /const detailScopedUpload = Boolean\(detailScopedClaimId && files\.length\)/)
+  assert.match(submitComposerScript, /draft_claim_id: detailScopedClaimId/)
+  assert.match(submitComposerScript, /detail_scope_claim_id: detailScopedClaimId/)
+  assert.match(submitComposerScript, /detailScopedUpload/)
+})