提交优化

backend/src/main/java/com/bycrm/service/impl/DealerServiceImpl.java

@@ -72,7 +72,7 @@ public class DealerServiceImpl implements DealerService {
         // 设置密码：如果提供了密码则使用提供的密码，否则使用默认密码
         String password = dealerDTO.getPassword();
         if (password == null || password.trim().isEmpty()) {
-            password = "123456"; // 默认密码
+            password = "a123456"; // 默认密码
         }
         user.setPassword(passwordEncoder.encode(password));
         user.setCreatedAt(LocalDateTime.now());