fix: correct BoxLang MCP server URL to point at core language docs

[Copilot]

The boxlang entry in MCPRegistry.cfc was registered with the BoxLang AI module docs URL (ai.ortusbooks.com) instead of the core BoxLang language docs URL, causing AI agents to retrieve irrelevant AI-module content when querying for core language documentation.

Changes

• models/MCPRegistry.cfc — Updated boxlang server URL from https://ai.ortusbooks.com/~gitbook/mcp to https://boxlang.ortusbooks.com/~gitbook/mcp. The bx-ai entry retains the original URL as it correctly points to the AI module docs.

// Before
"boxlang" : {
    "name"        : "boxlang",
    "description" : "BoxLang Language Documentation",
    "url"         : "https://ai.ortusbooks.com/~gitbook/mcp"  // AI module docs — wrong
},

// After
"boxlang" : {
    "name"        : "boxlang",
    "description" : "BoxLang Language Documentation",
    "url"         : "https://boxlang.ortusbooks.com/~gitbook/mcp"  // Core language docs — correct
},