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.

desktop_env/providers/aliyun/provider.py

@@ -120,10 +120,10 @@ class AliyunProvider(Provider):
                 return ""
 
             _wait_until_server_ready(ip_to_use)
-
-            vnc_url = f"http://{ip_to_use}:5910/vnc.html"
-            logger.info("=" * 80)
-            logger.info(f"🖥️  VNC Web Access URL: {vnc_url}")
+            if public_ip:
+                vnc_url = f"http://{public_ip}:5910/vnc.html"
+                logger.info(f"🖥️  VNC Web Access URL: {vnc_url}")
+                logger.info("=" * 80)
             logger.info(f"📡 Public IP: {public_ip}")
             logger.info(f"🏠 Private IP: {private_ip}")
             logger.info(f"🔧 Using IP: {'Private' if ip_to_use == private_ip else 'Public'} -> {ip_to_use}")