feat: Add WebView node for embedding web content in worlds

[jb0gie]

Description:

Summary

• Added WebView node type for displaying web content in Hyperfy worlds
• Supports both world space (3D positioned) and screen space (HUD/overlay) rendering
• Enables embedding of web content like videos, dashboards, and interactive panels

Features

• World Space WebViews: Position web content in 3D space (TVs, monitors, info panels)
• Screen Space WebViews: Fixed HUD elements and overlays
• Full iframe support: Display any web content that supports iframe embedding
• Configurable dimensions: Set width/height for content resolution
• Interactive: Supports click-through interaction when appropriate

Implementation Details

• New WebView node type added to core nodes
• Supports standard node transformations (position, rotation, scale)
• Screen space uses viewport coordinates (0-1 range)
• World space uses size parameter for scaling
• Comprehensive documentation added

Use Cases

• Video screens and TVs in virtual spaces
• Information dashboards and panels
• HUD elements for game interfaces
• Interactive web-based tools within worlds
• Live data displays and monitoring

Test Plan

• Create world space WebView with YouTube embed
• Create screen space WebView as HUD element
• Test positioning and scaling in both spaces
• Verify iframe content loads correctly
• Test interaction with WebView content
• Ensure proper cleanup on node removal

Known Issues

• Z-indexing/Depth layering: There are currently issues with z-index ordering and depth layering when multiple WebViews overlap or when WebViews interact with
  other UI elements. This needs to be addressed in a follow-up PR.

Documentation

• Added comprehensive documentation in docs/scripting/nodes/types/WebView.md
• Includes usage examples for both world and screen space
• Property descriptions and configuration options

Files Changed

• src/core/nodes/WebView.js - WebView node implementation
• src/core/nodes/index.js - Export WebView from nodes
• docs/scripting/nodes/types/WebView.md - Documentation

[jb0gie]

webviewPR1.mp4

webviewPR2.mp4

[ashconnell]

oh this is a bit weird haha, i think you have it overlaying the iframe on top of everything, but we probably want to use a cutout so that other 3d objects can go in front.