Summary: Cursor adds GPT-5.2 and advanced agent demos

Why It Matters: The update showcases more complex AI capabilities, specifically moving from simple code edits to building entire machine learning frameworks and managing complex project tasks autonomously.

What Changed:

• Added references to GPT-5.2 as a supported model in the interface.
• Updated the interactive demo to show the Cursor Agent building a complete PyTorch MNIST experiment framework.
• Expanded the code examples to include configuration management, mixed precision training, and validation logic.
• Added a new testimonial from ThePrimeagen emphasizing the shift from "vibe coding" to "tab coding."
• Updated the "Complete codebase understanding" section to show more detailed search and grep steps.