Update Aliyun guidelines to include SSH and VNC password setup script

Update Aliyun guidelines to include SSH and VNC password setup script

Add Aliyun SDK dependencies and implement TTL configuration for ECS instances - Added new dependencies for Aliyun ECS SDK in requirements.txt and setup.py to support instance management features. - Introduced a new config module to handle TTL settings for ECS instances, allowing for auto-termination based on environment variables. - Updated the manager to utilize TTL settings, including scheduling instance termination with proper error handling and logging. - Maintained existing code logic while enhancing functionality for improved instance lifecycle management.

Add resource group ID support for Aliyun VM allocation - Introduced ALIYUN_RESOURCE_GROUP_ID environment variable to manage resource group assignments during VM allocation. - Updated the _allocate_vm function to include resource group ID in the request if specified. - Modified VNC URL logging to use public IP when available, enhancing clarity in access information. - Maintained existing code logic while improving functionality for resource management and logging.

Add resource group ID support for Aliyun VM allocation - Introduced ALIYUN_RESOURCE_GROUP_ID environment variable to manage resource group assignments during VM allocation. - Updated the _allocate_vm function to include resource group ID in the request if specified. - Modified VNC URL logging to use public IP when available, enhancing clarity in access information. - Maintained existing code logic while improving functionality for resource management and logging.

feat: Add Aliyun provider support for desktop environment (#304) * Adding support for aliyun as a provider * feat: enhance Aliyun provider support - Added Aliyun as a new provider in the desktop environment. - Updated the environment configuration guidelines for Aliyun, including prerequisites and environment variables. - Implemented instance allocation and management functions for Aliyun ECS, including signal handling for graceful termination. - Improved logging and error handling during instance creation and status checks. - Adjusted the provider's methods to utilize the new instance management functions.