Password not showing when creating a VM in a powered off state.

### problem

When we create a virtual machine from a template with the password enabled, and we disable the “Start Instance” switch during creation, the password message does not appear after creation.

### versions

ACS 4.19.1.3
Ubuntu 24.04.1
KVM

### The steps to reproduce the bug

1. Go to Instances and press Add Instance button
2. Choose password enabled template
3. Turn off "Start Instance" switcher
4. Press Create Instance button
...

### What to do about it?

Users expect the password to be shown when creating a virtual machine, regardless of whether it’s powered on or off during creation. The current behavior, where the password is not displayed when the VM is powered off, is confusing.

先查看已关闭的 pull request #10720，然后通过从禁用了“Start Instance”的启用密码模板创建实例来复现该问题。完成的标准是：创建后显示密码消息，无论新 VM 是以开机状态启动还是保持关机状态。

由索引模型根据 Issue 内容生成。