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

frontend/src/pages/Roster.tsx

@@ -475,7 +475,7 @@ export default function Roster() {
           formData: {
             employeeId: id,
             employeeName: emp.name,
-            idCardNumber: emp.idCardMasked || '',
+            idCardNumber: emp.idCardNumber || '',
             position: emp.position || '',
             monthlyIncome: emp.monthlySalary ? `¥${emp.monthlySalary}` : '',
             purpose: '批量开具',
@@ -564,7 +564,7 @@ export default function Roster() {
   const [showColSettings, setShowColSettings] = useState(false)
 
   const filtered = employees?.filter((e: any) =>
-    !search || e.name.includes(search) || e.department.includes(search) || (e.idCardMasked && e.idCardMasked.includes(search))
+    !search || e.name.includes(search) || e.department.includes(search) || (e.idCardNumber && e.idCardNumber.includes(search))
   ) || []
 
   // 通讯录视图数据
@@ -800,7 +800,7 @@ export default function Roster() {
                           if (e.idCardNumber) {
                             copyToClipboard(e.idCardNumber, '已复制证件号码')
                           }
-                        }}>{e.idCardMasked || '—'}</span>
+                        }}>{e.idCardNumber || '—'}</span>
                       </div>
                     </td>
                     {colVisible('department') && <td className="px-4 py-2.5 text-gray-500">{e.department}</td>}
@@ -1213,7 +1213,7 @@ export default function Roster() {
                     formData: {
                       employeeId: certEmployee.id,
                       employeeName: certEmployee.name,
-                      idCardNumber: certEmployee.idCardMasked || '',
+                      idCardNumber: certEmployee.idCardNumber || '',
                       position: certEmployee.position || '',
                       monthlyIncome: certEmployee.monthlySalary ? `¥${certEmployee.monthlySalary}` : '',
                       purpose: certPurpose || '通用',