Summary: Cursor updates homepage with advanced AI agent demo

Why It Matters: The update shows the product handling more complex, multi-step coding tasks. It moves the focus from simple code completion to a full "agent" that can build entire frameworks and manage complex configurations.

What Changed:

• Updated the interactive demo to show the AI agent building a complete machine learning experiment framework.
• Added new code examples showing advanced features like mixed precision training and YAML configuration management.
• Changed the primary download links to point directly to version 2.3.
• Added timestamps and status updates (e.g., "30m ago," "Done") to the demo interface to simulate a real-time collaborative feel.
• Updated the "Complete codebase understanding" section to include "Grepped" and "Searching" status indicators.