feat: 分页组件、Dashboard待办图标、归档与工资条解耦、总览数据优化

- 新增公用 Pagination 组件，Roster/Money/Dashboard 列表加分页
- Dashboard 待办按类型显示不同图标（合同/薪资/解聘/月度）
- 待办分为「风险提醒」「月度任务」两个顶层 tab
- 归档与工资条生成解耦：归档只锁定批次，工资条单独生成
- 工资条管理新增「从批次汇总生成」按钮
- Dashboard 总览优先从已归档批次 BatchEntry 汇总数据
- 新增工资条生成待办提醒，生成后自动标记完成
- 修复高风险统计只含 CONTRACT/TERMINATION 类型
- 修复月度任务去重逻辑覆盖 SALARY 类型

backend/src/services/contract.service.ts

@@ -212,12 +212,33 @@ export async function updateEmployee(orgId: string, id: string, data: any) {
   if (data.name !== undefined) updateData.name = data.name
   if (data.department !== undefined) updateData.department = data.department
   if (data.hireDate !== undefined) updateData.hireDate = new Date(data.hireDate)
-  if (data.monthlySalary !== undefined) updateData.monthlySalary = encrypt(data.monthlySalary)
+  if (data.monthlySalary !== undefined) {
+    const oldSalary = Number(decrypt(employee.monthlySalary)) || 0
+    const newSalary = Number(data.monthlySalary) || 0
+    updateData.monthlySalary = encrypt(data.monthlySalary)
+    // 记录薪资变更
+    if (oldSalary !== newSalary) {
+      await prisma.salaryChangeRecord.create({
+        data: {
+          orgId,
+          employeeId: id,
+          oldSalary,
+          newSalary,
+          effectiveDate: new Date(),
+          reason: data.salaryChangeReason || '手动调整',
+          createdBy: '',
+        },
+      })
+    }
+  }
   if (data.gender !== undefined) updateData.gender = data.gender
   if (data.phone !== undefined) updateData.phone = data.phone
   if (data.isPregnant !== undefined) updateData.isPregnant = data.isPregnant
   if (data.isInMedicalPeriod !== undefined) updateData.isInMedicalPeriod = data.isInMedicalPeriod
   if (data.isWorkInjured !== undefined) updateData.isWorkInjured = data.isWorkInjured
+  if (data.socialInsBase !== undefined) updateData.socialInsBase = data.socialInsBase
+  if (data.housingFundBase !== undefined) updateData.housingFundBase = data.housingFundBase
+  if (data.specialDeduction !== undefined) updateData.specialDeduction = data.specialDeduction
 
   await prisma.employee.update({ where: { id }, data: updateData })
   await runRiskDetection(orgId)