Add PlayCanvas MCP Server

[willeastcott]

Added the PlayCanvas MCP Server.

Description

Allows an LLM to drive all major functions of the PlayCanvas Editor to edit and even one-shot whole games and 3D apps.

Server Details

• Server: PlayCanvas (https://github.com/playcanvas/editor-mcp-server)
• Changes to: New Server

Motivation and Context

Allows for visual vibe coding of 3D apps and games.

How Has This Been Tested?

Tested with Claude Desktop and Cursor on both Mac and Windows.

Breaking Changes

Not beyond adding the server to their config.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Protocol Documentation
• My changes follows MCP security best practices
• I have updated the server's README accordingly
• I have tested this with an LLM client
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have documented all environment variables and configuration options

Additional context

N/A

[olaservo]

Thanks for your contribution to the servers list. This has been merged in this combined PR: #2144

This is a new process we're trying out, so if you see any issues feel free to re-open the PR and tag me.