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/expense-claim-archive.test.mjs

@@ -0,0 +1,34 @@
+import assert from 'node:assert/strict'
+import { readFileSync } from 'node:fs'
+import test from 'node:test'
+import { fileURLToPath } from 'node:url'
+
+import { isArchivedExpenseClaim } from '../src/utils/expenseClaimArchive.js'
+
+test('isArchivedExpenseClaim recognizes finance archive stage', () => {
+  assert.equal(
+    isArchivedExpenseClaim({ status: 'approved', approval_stage: '归档入账' }),
+    true
+  )
+})
+
+test('isArchivedExpenseClaim ignores in-progress claims', () => {
+  assert.equal(
+    isArchivedExpenseClaim({ status: 'submitted', approval_stage: '财务审批' }),
+    false
+  )
+})
+
+test('archive center is wired into navigation and api client', () => {
+  const navigationScript = readFileSync(
+    fileURLToPath(new URL('../src/composables/useNavigation.js', import.meta.url)),
+    'utf8'
+  )
+  const reimbursementsService = readFileSync(
+    fileURLToPath(new URL('../src/services/reimbursements.js', import.meta.url)),
+    'utf8'
+  )
+
+  assert.match(navigationScript, /id:\s*'archive'/)
+  assert.match(reimbursementsService, /\/reimbursements\/claims\/archives/)
+})