fix: 在职/离职状态改为根据解聘日期动态计算

- 花名册列表 API: include terminations，根据解聘日期<=今天判断RESIGNED
- 员工详情 API: 同样动态计算 status
- 证据链 API: 同样动态计算 status
- 不再依赖数据库中静态的 status 字段
- 吴芳等解聘日期在未来的员工将正确显示为在职

backend/src/routes/roster.routes.ts

@@ -26,6 +26,7 @@ router.get('/', authMiddleware, async (req: AuthRequest, res, next) => {
       orderBy: { createdAt: 'desc' },
       include: {
         contracts: { orderBy: { createdAt: 'desc' }, take: 1 },
+        terminations: { orderBy: { terminationDate: 'desc' }, take: 1 },
         _count: {
           select: {
             disciplinaryRecords: true,
@@ -38,6 +39,8 @@ router.get('/', authMiddleware, async (req: AuthRequest, res, next) => {
         },
       },
     })
+    const today = new Date()
+    today.setHours(0, 0, 0, 0)
     const result = employees.map((e) => {
       const latestContract = e.contracts[0] || null
       const contractInfo = latestContract
@@ -59,7 +62,7 @@ router.get('/', authMiddleware, async (req: AuthRequest, res, next) => {
         id: e.id,
         name: e.name,
         department: e.department,
-        status: e.status,
+        status: e.terminations.some((t) => t.terminationDate <= today) ? 'RESIGNED' : 'ACTIVE',
         hireDate: e.hireDate,
         gender: e.gender,
         phone: e.phone,
@@ -98,10 +101,14 @@ router.get('/:id/profile', authMiddleware, async (req: AuthRequest, res, next) =
       return res.status(404).json({ success: false, error: { code: 'NOT_FOUND', message: '员工不存在' } })
     }
     const { monthlySalary, bankAccount, idCardNumber, ...rest } = employee
+    const today = new Date()
+    today.setHours(0, 0, 0, 0)
+    const dynamicStatus = employee.terminations.some((t) => t.terminationDate <= today) ? 'RESIGNED' : 'ACTIVE'
     res.json({
       success: true,
       data: {
         ...rest,
+        status: dynamicStatus,
         monthlySalary: safeDecrypt(monthlySalary),
         bankAccount: bankAccount ? safeDecrypt(bankAccount).toString() : null,
         idCardNumber: idCardNumber ? safeDecrypt(idCardNumber).toString() : null,
@@ -251,7 +258,7 @@ router.get('/:id/evidence-chain', authMiddleware, async (req: AuthRequest, res,
           name: empName,
           department: empDept,
           hireDate,
-          status: employee.status,
+          status: employee.terminations.some((t) => t.terminationDate <= new Date()) ? 'RESIGNED' : 'ACTIVE',
           gender: employee.gender,
           phone: employee.phone,
         },