fix: AI风险预测员工下拉框显示完整身份证号区分同名员工

- 后端 /employees/list 接口返回解密后的完整身份证号
- 前端 AI风险预测通用模式和结构化模式员工下拉框显示 姓名（身份证号）

backend/src/routes/employee.routes.ts

@@ -82,10 +82,23 @@ router.get('/list', authMiddleware, async (req: AuthRequest, res, next) => {
         status: { in: status },
         ...(department && { department }),
       },
-      select: { id: true, name: true, department: true, position: true, phone: true, gender: true, status: true },
+      select: { id: true, name: true, department: true, position: true, phone: true, gender: true, status: true, idCardNumber: true },
       orderBy: { name: 'asc' },
     })
-    res.json({ success: true, data: employees })
+    // 解密身份证号，返回完整明文用于前端下拉框区分同名员工
+    const employeesWithIdCard = employees.map((e: any) => {
+      let idCardNo = ''
+      if (e.idCardNumber) {
+        try {
+          const plain = decrypt(e.idCardNumber)
+          if (plain) idCardNo = plain
+        } catch {}
+      }
+      delete e.idCardNumber
+      e.idCardNo = idCardNo
+      return e
+    })
+    res.json({ success: true, data: employeesWithIdCard })
   } catch (err) {
     next(err)
   }