fix: 全部员工显示改为姓名+完整身份证号，不再脱敏

- 花名册列表显示完整身份证号
- 社保公积金月度办理列表姓名下显示身份证号
- 员工详情页显示完整身份证号
- 商业保险列表显示完整身份证号
- 后端去掉 idCardMasked 脱敏逻辑

backend/src/routes/commercial-insurance.routes.ts

@@ -2,6 +2,7 @@ import { Router, Response, NextFunction } from 'express'
 import { z } from 'zod'
 import prisma from '../lib/prisma'
 import { authMiddleware, AuthRequest } from '../middleware/auth'
+import { decrypt } from '../lib/crypto'
 
 const router = Router()
 router.use(authMiddleware)
@@ -45,7 +46,7 @@ router.get('/plans/:planId/enrollments', async (req: AuthRequest, res: Response,
       employeeId: e.employeeId,
       name: e.employee.name,
       department: e.employee.department,
-      idCardMasked: e.employee.idCardNumber ? e.employee.idCardNumber.slice(0, 3) + '****' + e.employee.idCardNumber.slice(-4) : null,
+      idCardNumber: e.employee.idCardNumber ? (() => { try { return e.employee.idCardNumber.includes(':') ? decrypt(e.employee.idCardNumber) : e.employee.idCardNumber } catch { return null } })() : null,
       premium: e.premium,
       effectiveFrom: e.effectiveFrom,
       effectiveTo: e.effectiveTo,