Add MCP server configuration for Microsoft documentation API

[Copilot]

Ports PR #26790 - adds Model Context Protocol (MCP) server configuration enabling GitHub Copilot and other MCP clients to query Microsoft's documentation API.

Changes

• .github/mcp.json - MCP server configuration
  • Server: microsoftdocs/mcp
  • Type: HTTP
  • Endpoint: https://learn.microsoft.com/api/mcp
  • Version: 1.0.0

{
	"mcpServers": {
		"microsoftdocs/mcp": {
			"type": "http",
			"url": "https://learn.microsoft.com/api/mcp",
			"gallery": "https://api.mcp.github.com",
			"version": "1.0.0"
		}
	}
}

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://api.github.com/repos/PowerShell/PowerShell/pulls/26790/files
  • Triggering command: /usr/bin/curl curl -s REDACTED (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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