feat: 优化差旅报销预审流程与个人工作台 UI 体系

- 完善 user_agent_application 申请差旅报销预审槽位与消息组装
- 增强预算助理报告与风险建议卡片交互
- 重构登录页视觉样式与移动端响应式适配
- 优化个人工作台、文档中心、政策中心、员工管理等页面布局
- 拆分 travelRequestDetailPreReviewModel 为 advice/submit 模型
- 补充报销草稿、风险复核、Item Sync 与模板执行器测试覆盖

web/tests/requestProgressSteps.test.mjs

@@ -418,7 +418,6 @@ test('progress steps show approval operator time and current stay duration', ()
 
     const leaderStep = request.progressSteps.find((step) => step.label === '直属领导审批')
     const financeStep = request.progressSteps.find((step) => step.label === '财务审批')
-    const aiStep = request.progressSteps.find((step) => step.label === 'AI预审')
     const firstStep = request.progressSteps[0]
 
     assert.equal(request.riskSummary, '无')
@@ -426,8 +425,7 @@ test('progress steps show approval operator time and current stay duration', ()
     assert.equal(leaderStep.time, '李经理通过')
     assert.match(leaderStep.detail, /2026-05-20/)
     assert.match(leaderStep.title, /李经理审批通过/)
-    assert.equal(aiStep.time, 'AI预审通过')
-    assert.match(aiStep.detail, /2026-05-20/)
+    assert.equal(request.progressSteps.some((step) => step.label === 'AI预审'), false)
     assert.equal(financeStep.current, true)
     assert.equal(financeStep.time, '停留 1小时30分钟')
   } finally {
@@ -701,7 +699,7 @@ test('paid reimbursement marks payment progress step as complete', () => {
   assert.equal(request.approvalStatus, '已付款')
   assert.deepEqual(
     request.progressSteps.map((step) => step.label),
-    [LINKED_APPLICATION, '待提交', 'AI预审', '直属领导审批', '财务审批', '待付款', PAID, ARCHIVED]
+    [LINKED_APPLICATION, '待提交', '直属领导审批', '财务审批', '待付款', PAID, ARCHIVED]
   )
   assert.equal(paymentStep.time, '待付款')
   assert.equal(paidStep.time, '已付款')