fix: 创建员工时从身份证解析性别和出生日期

- contract.service.ts createEmployee: gender 为空时从身份证第17位解析，birthDate 从第7-14位提取
- portal.routes.ts GET /profile: gender/birthDate 为空时从身份证 fallback 解析
- gender 统一使用中文 男/女（与数据库和其他服务一致）
- 前端 MyProfile.tsx 性别显示适配中文

backend/src/routes/portal.routes.ts

@@ -885,11 +885,29 @@ router.get('/profile', portalAuth, async (req: any, res, next) => {
     try { if (emp.idCardNumber) idCardNo = decrypt(emp.idCardNumber) } catch {}
     try { if (emp.bankAccount) bankAccount = decrypt(emp.bankAccount) } catch {}
 
+    // 从身份证号解析性别和出生日期（数据库字段为空时）
+    let gender = emp.gender || ''
+    let birthDate = emp.birthDate ? emp.birthDate.toISOString().slice(0, 10) : ''
+    if (idCardNo && idCardNo.length === 18) {
+      // 第17位：奇数=男，偶数=女
+      if (!gender) {
+        const genderDigit = parseInt(idCardNo[16], 10)
+        gender = genderDigit % 2 === 1 ? '男' : '女'
+      }
+      // 第7-14位：出生日期 YYYYMMDD
+      if (!birthDate) {
+        const y = idCardNo.slice(6, 10)
+        const m = idCardNo.slice(10, 12)
+        const d = idCardNo.slice(12, 14)
+        birthDate = `${y}-${m}-${d}`
+      }
+    }
+
     res.json({
       success: true,
       data: {
         name: emp.name,
-        gender: emp.gender || '',
+        gender,
         phone: emp.phone || '',
         idCardNo,
         idType: emp.idType || 'ID_CARD',
@@ -903,7 +921,7 @@ router.get('/profile', portalAuth, async (req: any, res, next) => {
         bankName: emp.bankName || '',
         education: emp.education || '',
         city: emp.city || '',
-        birthDate: emp.birthDate ? emp.birthDate.toISOString().slice(0, 10) : '',
+        birthDate,
       },
     })
   } catch (err) { next(err) }

backend/src/services/contract.service.ts

@@ -410,12 +410,13 @@ export async function createEmployee(orgId: string, userId: string, data: any) {
         monthlySalary: encrypt(data.monthlySalary),
         baseSalary: encrypt(String(baseSalaryNum)),
         performanceSalary: encrypt(String(performanceSalaryNum)),
-        gender: data.gender,
+        gender: data.gender || (data.idCardNumber ? extractGenderFromIdCard(data.idCardNumber) : null),
         femaleWorkerType: data.femaleWorkerType,
         phone: data.phone,
         passwordHash,
         idCardNumber: data.idCardNumber ? encrypt(data.idCardNumber) : null,
         idCardHash: data.idCardNumber ? sha256(data.idCardNumber) : null,
+        birthDate: data.idCardNumber ? extractBirthDateFromIdCard(data.idCardNumber) : null,
         isPregnant: data.isPregnant || false,
         isInMedicalPeriod: data.isInMedicalPeriod || false,
         isWorkInjured: data.isWorkInjured || false,

frontend/src/pages/portal/MyProfile.tsx

@@ -75,7 +75,7 @@ export default function MyProfile() {
 
   const readOnlyFields = [
     { label: '姓名', value: profile.name, icon: User },
-    { label: '性别', value: profile.gender === 'M' ? '男' : profile.gender === 'F' ? '女' : '未填写', icon: User },
+    { label: '性别', value: profile.gender === '男' ? '男' : profile.gender === '女' ? '女' : '未填写', icon: User },
     { label: '手机号', value: profile.phone || '未填写', icon: Phone },
     { label: '证件号码', value: profile.idCardNo || '未填写', icon: IdCard },
     { label: '部门', value: profile.department || '未填写', icon: User },