add cursor rules

[jb0gie]

Description

Please include a summary of the changes and which component(s) are affected. Explain how your changes improve or modify the component's functionality within the Hyperfy ecosystem.

Fixes # (issue)

increase people using cursor to hypecode results

Type of change

• Documentation update

How Has This Been Tested?

Please describe your tests:

• Component functionality tests
• Integration tests with other Hyperfy components
• World integration testing
• Cross-browser testing

Test Configuration:

• Hyperfy Version: 0.13
• Test world setup: n/a
• Browser(s): n/a
• Node.js version: 22.11

Checklist:

• [] My code follows Hyperfy's component architecture
• [] I have performed a self-review
• [] I have documented the component's usage
• [] I have tested the component in multiple scenarios
• [] My changes maintain compatibility with existing worlds
• [] I have updated the component documentation if needed