ClientControls to accept callbacks for the initial user interaction

[ProteanCoding]

Description

Adds the detection of the initial pointer-lock from the user.

To be used e.g. this way:

world['controls'].onInitialPointerLock(() => console.log('initial pointer lock detected'))

Type of change

• Component enhancement

How Has This Been Tested?

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

Test Configuration:

• Hyperfy Version: latest
• Test world setup: simple
• Browser(s): Firefox
• Node.js version: 22.11.0

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