fix: 提成奖金、证据链条、风险中心姓名显示身份证号

后端：
- commission-bonus.service.ts: listByMonth 查询加上 idCardNumber 并解密
- evidence.service.ts: getEvidenceList 加上 idCardNumber 并解密返回 employeeIdCardNumber
- roster.routes.ts: 证据链接口返回 employee.idCardNumber，Excel 导出加上身份证号

前端：
- CommissionBonus.tsx: 列表姓名下显示身份证号，下拉选项和编辑弹窗也加上
- EvidenceChain.tsx: 两处姓名显示加上身份证号，文本导出加上身份证号
- Evidence.tsx: 证据链列表页姓名后显示身份证号

frontend/src/pages/CommissionBonus.tsx

@@ -171,7 +171,10 @@ export default function CommissionBonus() {
               <tr><td colSpan={5} className="px-4 py-8 text-center text-gray-400">{month} 无提成奖金记录</td></tr>
             ) : paged.map((r: any) => (
               <tr key={r.id} className="hover:bg-gray-50">
-                <td className="px-4 py-2.5 text-sm text-gray-900">{r.employee?.name || '-'}</td>
+                <td className="px-4 py-2.5 text-sm text-gray-900">
+                  {r.employee?.name || '-'}
+                  {r.employee?.idCardNumber && <div className="text-xs text-gray-400 font-mono">{r.employee.idCardNumber}</div>}
+                </td>
                 <td className="px-4 py-2.5 text-sm text-gray-500">{r.employee?.department || '-'}</td>
                 <td className={`px-4 py-2.5 text-sm text-right font-medium ${r.amount >= 0 ? 'text-safe' : 'text-danger'}`}>
                   {r.amount >= 0 ? '+' : ''}{fmt(r.amount)}
@@ -241,7 +244,7 @@ function AddModal({ employees, month, onClose, onSubmit, saving }: {
           <Select value={employeeId} onChange={(e) => setEmployeeId(e.target.value)}>
             <option value="">请选择员工</option>
             {employees.map((e: any) => (
-              <option key={e.id} value={e.id}>{e.name}（{e.department}）</option>
+              <option key={e.id} value={e.id}>{e.name}（{e.department}）{e.idCardNumber ? ` ${e.idCardNumber}` : ''}</option>
             ))}
           </Select>
         </div>
@@ -281,7 +284,7 @@ function EditModal({ record, onClose, onSubmit, saving }: {
   const [remark, setRemark] = useState(record.remark || '')
 
   return (
-    <Modal open onClose={onClose} title={`编辑 - ${record.employee?.name || ''}`} size="md">
+    <Modal open onClose={onClose} title={`编辑 - ${record.employee?.name || ''}${record.employee?.idCardNumber ? `（${record.employee.idCardNumber}）` : ''}`} size="md">
       <div className="space-y-4">
         <div>
           <Label>金额 *（正=奖金，负=扣款）</Label>

frontend/src/pages/Evidence.tsx

@@ -121,7 +121,7 @@ export default function Evidence() {
                     </div>
                     {item.employeeName && (
                       <div className="text-xs text-gray-500 mt-0.5">
-                        员工：{item.employeeName}{item.employeeDept ? ` · ${item.employeeDept}` : ''}
+                        员工：{item.employeeName}{item.employeeDept ? ` · ${item.employeeDept}` : ''}{item.employeeIdCardNumber && <span className="ml-1 font-mono text-gray-400">{item.employeeIdCardNumber}</span>}
                       </div>
                     )}
                     <div className="text-xs text-gray-400 mt-0.5 flex items-center gap-2">

frontend/src/pages/roster/EvidenceChain.tsx

@@ -48,6 +48,7 @@ export default function EvidenceChain({ employeeId }: { employeeId: string }) {
             <h2 className="text-xs font-medium flex items-center gap-2"><Scale className="w-4 h-4" />仲裁证据链</h2>
             <div className="text-xs text-gray-500 mt-1">
               {data.employee?.name || '未知'} · {data.employee?.department || '未知'} · 入职{data.employee?.hireDate ? data.employee.hireDate.toString().slice(0, 10) : '未知'}
+              {data.employee?.idCardNumber && <span className="ml-1 font-mono text-gray-400">{data.employee.idCardNumber}</span>}
             </div>
           </div>
         </div>
@@ -104,6 +105,7 @@ export default function EvidenceChain({ employeeId }: { employeeId: string }) {
             <h2 className="text-xs font-medium flex items-center gap-2"><Scale className="w-4 h-4" />仲裁证据链</h2>
             <div className="text-xs text-gray-500 mt-1">
               {data.employee.name} · {data.employee.department} · 入职{data.employee.hireDate}
+              {data.employee.idCardNumber && <span className="ml-1 font-mono text-gray-400">{data.employee.idCardNumber}</span>}
             </div>
           </div>
           <div className="flex items-center gap-4">
@@ -228,6 +230,7 @@ export function generateEvidenceText(data: any): string {
   lines.push('========================================')
   lines.push('')
   lines.push(`员工姓名：${data.employee.name}`)
+  if (data.employee.idCardNumber) lines.push(`身份证号：${data.employee.idCardNumber}`)
   lines.push(`部门：${data.employee.department}`)
   lines.push(`入职日期：${data.employee.hireDate}`)
   lines.push(`状态：${data.employee.status === 'ACTIVE' ? '在职' : '离职'}`)