feat: 新增预算费控模型与报销审批流引擎

后端新增预算费控服务和报销单审批流模块，引入申请人费用画像
算法，优化知识库 RAG 运行时和同步逻辑，完善报销单工作流常
量和明细同步，更新差旅报销规则电子表格，前端新增预算分析
组件和数字员工模型，完善审批对话框和洞察面板交互，优化侧
边栏和顶栏样式，补充单元测试。

web/tests/app-shell-detail-alerts.test.mjs

@@ -57,7 +57,7 @@ test('detail topbar ignores system allowance rows when checking missing tickets'
 
   assert.equal(hasMissingAttachment(request), false)
   assert.equal(hasPendingInfo(request), false)
-  assert.deepEqual(alerts, ['直属领导审批'])
+  assert.deepEqual(alerts, ['SLA 催单次数 0'])
 })
 
 test('detail topbar still flags real manual rows without required ticket info', () => {
@@ -96,7 +96,7 @@ test('detail topbar still flags real manual rows without required ticket info',
 
   assert.equal(hasMissingAttachment(request), true)
   assert.equal(hasPendingInfo(request), true)
-  assert.deepEqual(alerts, ['待提交', '缺少票据', '待补信息'])
+  assert.deepEqual(alerts, ['SLA 催单次数 0', '缺少票据', '待补信息'])
 })
 
 test('application detail topbar does not ask for receipt attachments', () => {
@@ -122,5 +122,29 @@ test('application detail topbar does not ask for receipt attachments', () => {
 
   assert.equal(hasMissingAttachment(request), false)
   assert.equal(alerts.includes('缺少票据'), false)
-  assert.deepEqual(alerts, ['直属领导审批'])
+  assert.deepEqual(alerts, ['SLA 催单次数 0'])
+})
+
+test('detail topbar shows SLA reminder count from direct fields and reminder events', () => {
+  const directAlerts = buildDetailAlerts({
+    node: '直属领导审批',
+    approvalKey: 'in_progress',
+    slaReminderCount: 2,
+    expenseItems: []
+  })
+
+  const eventAlerts = buildDetailAlerts({
+    node: '直属领导审批',
+    approvalKey: 'in_progress',
+    riskFlags: [
+      { source: 'sla_reminder', message: '下属已催单' },
+      { event_type: 'urge', message: '再次催单' }
+    ],
+    expenseItems: []
+  })
+
+  assert.equal(directAlerts[0].label, 'SLA 催单次数 2')
+  assert.equal(directAlerts[0].tone, 'warning')
+  assert.equal(directAlerts[0].icon, 'mdi mdi-bell-ring-outline')
+  assert.equal(eventAlerts[0].label, 'SLA 催单次数 2')
 })