feat: 新增 Proxmox provider 支持及 inject_steps 参数

- 新增 desktop_env/providers/proxmox/ (manager + provider)
- desktop_env.py: 添加 proxmox 到 provider 名称列表
- providers/__init__.py: 工厂函数注册 proxmox provider
- run.py: 新增 --inject_steps/--no_inject_steps 参数
- run_proxmox.sh: Proxmox 运行脚本

desktop_env/providers/__init__.py

@@ -4,7 +4,7 @@ from desktop_env.providers.base import VMManager, Provider
 def create_vm_manager_and_provider(provider_name: str, region: str, use_proxy: bool = False):
     """
     Factory function to get the Virtual Machine Manager and Provider instances based on the provided provider name.
-    
+
     Args:
         provider_name (str): The name of the provider (e.g., "aws", "vmware", etc.)
         region (str): The region for the provider
@@ -39,5 +39,9 @@ def create_vm_manager_and_provider(provider_name: str, region: str, use_proxy: b
         from desktop_env.providers.volcengine.manager import VolcengineVMManager
         from desktop_env.providers.volcengine.provider import VolcengineProvider
         return VolcengineVMManager(), VolcengineProvider()
+    elif provider_name == "proxmox":
+        from desktop_env.providers.proxmox.manager import ProxmoxVMManager
+        from desktop_env.providers.proxmox.provider import ProxmoxProvider
+        return ProxmoxVMManager(), ProxmoxProvider(region)
     else:
         raise NotImplementedError(f"{provider_name} not implemented!")