feat: 员工特殊状态台账（三期/工伤/医疗期）完整实现

backend/src/services/risk.service.ts

@@ -305,6 +305,80 @@ export async function detectTerminationRisks(orgId: string) {
   return risks
 }
 
+/**
+ * 检测特殊状态相关风险（三期/工伤/医疗期员工合同到期不得终止）
+ */
+async function detectSpecialStatusRisks(orgId: string) {
+  const today = new Date()
+  today.setHours(0, 0, 0, 0)
+
+  // 查找所有进行中的特殊状态记录
+  const specialStatuses = await (prisma as any).employeeSpecialStatus.findMany({
+    where: { orgId, status: 'ACTIVE' },
+    include: {
+      employee: {
+        select: { id: true, name: true, status: true, contracts: { orderBy: { createdAt: 'desc' }, take: 1 } },
+      },
+    },
+  })
+
+  const risks: { employeeId: string; type: RiskType; level: RiskLevel; title: string; description: string; actionUrl: string }[] = []
+
+  for (const ss of specialStatuses) {
+    const emp = ss.employee
+    if (!emp || emp.status !== 'ACTIVE') continue
+    const latestContract = emp.contracts[0]
+    if (!latestContract || !latestContract.endDate) continue
+
+    const daysToExpire = daysBetween(latestContract.endDate, today)
+    const typeLabel = ss.type === 'PREGNANCY' ? '三期' : ss.type === 'WORK_INJURY' ? '工伤' : ss.type === 'MEDICAL_PERIOD' ? '医疗期' : '特殊状态'
+
+    // 合同即将到期但处于特殊状态期间，不得终止
+    if (daysToExpire >= 0 && daysToExpire <= 60) {
+      risks.push({
+        employeeId: emp.id,
+        type: 'CONTRACT' as RiskType,
+        level: 'HIGH' as RiskLevel,
+        title: `${emp.name}处于${typeLabel}期间，合同${daysToExpire}天后到期，依法不得终止`,
+        description: `${typeLabel}员工在合同到期时，用人单位不得依照《劳动合同法》第四十条、第四十一条终止合同，需顺延至相应情形消失。`,
+        actionUrl: `/special-status?type=${ss.type}`,
+      })
+    }
+
+    // 工伤认定超期提醒（受伤30天内未认定）
+    if (ss.type === 'WORK_INJURY' && ss.injuryDate && !ss.certificationDate) {
+      const daysSinceInjury = daysBetween(today, new Date(ss.injuryDate))
+      if (daysSinceInjury > 30) {
+        risks.push({
+          employeeId: emp.id,
+          type: 'CONTRACT' as RiskType,
+          level: 'HIGH' as RiskLevel,
+          title: `${emp.name}工伤已${daysSinceInjury}天未完成认定，超30天限期`,
+          description: `用人单位应自事故伤害发生之日起30日内提出工伤认定申请，逾期将影响工伤待遇。`,
+          actionUrl: `/special-status?type=WORK_INJURY`,
+        })
+      }
+    }
+
+    // 医疗期即将到期
+    if (ss.type === 'MEDICAL_PERIOD' && ss.medicalPeriodEnd) {
+      const daysToMedicalEnd = daysBetween(new Date(ss.medicalPeriodEnd), today)
+      if (daysToMedicalEnd >= 0 && daysToMedicalEnd <= 30) {
+        risks.push({
+          employeeId: emp.id,
+          type: 'CONTRACT' as RiskType,
+          level: daysToMedicalEnd <= 7 ? 'HIGH' as RiskLevel : 'MEDIUM' as RiskLevel,
+          title: `${emp.name}医疗期${daysToMedicalEnd}天后到期，需提前处理`,
+          description: `医疗期届满后，员工仍需治疗的，用人单位应按规定处理。医疗期满不能从事原工作的，可依法解除合同但需支付经济补偿。`,
+          actionUrl: `/special-status?type=MEDICAL_PERIOD`,
+        })
+      }
+    }
+  }
+
+  return risks
+}
+
 export async function detectMonthlyTasks(orgId: string) {
   const setting = await prisma.notificationSetting.findUnique({ where: { orgId } })
   if (!setting) return []
@@ -372,9 +446,10 @@ export async function runRiskDetection(orgId: string) {
   const terminationRisks = await detectTerminationRisks(orgId)
   const onboardingRisks = await detectOnboardingRisks(orgId)
   const monthlyTasks = await detectMonthlyTasks(orgId)
+  const specialStatusRisks = await detectSpecialStatusRisks(orgId)
 
   // 获取所有相关员工数据用于风险量化
-  const allEmployeeIds = [...contractRisks, ...terminationRisks, ...onboardingRisks]
+  const allEmployeeIds = [...contractRisks, ...terminationRisks, ...onboardingRisks, ...specialStatusRisks]
     .map(r => r.employeeId)
     .filter(Boolean) as string[]
   const employees = allEmployeeIds.length > 0
@@ -383,7 +458,7 @@ export async function runRiskDetection(orgId: string) {
   const empMap = new Map(employees.map(e => [e.id, e]))
 
   // 月度任务用 monthlyKeys 去重，其他任务用 existingKeys 去重
-  const nonMonthlyRisks = [...contractRisks, ...terminationRisks, ...onboardingRisks]
+  const nonMonthlyRisks = [...contractRisks, ...terminationRisks, ...onboardingRisks, ...specialStatusRisks]
   const toCreate = [
     ...nonMonthlyRisks.filter((r) => !existingKeys.has(`${r.employeeId}:${r.type}:${r.actionUrl}`)),
     ...monthlyTasks.filter((r) => !monthlyKeys.has(`${r.employeeId}:${r.title}`)),