Auto-shutdown, Rate-limiting in LLM Gateway, Enterprise SSO

New Features & Improvements:

• Auto-shutdown/scale to zero in services
• Virtual account extended support for llm-models access
• Rate-limiting in llm-gateway
• Support for enterprise SSO
• Support for build-script in the workbench
• Show volume usage metrics for the home directory in the workbench

Bug fixes:

• Minor UI bug fixes