Fix wrong ForgeBox slug in BoxLang AI module error message

[Copilot]

The toAi()/toMCP() routing guard in Router.cfc referenced the slug bxai, which doesn't exist on ForgeBox — causing users who followed the suggested install command to hit a "slug does not exist" error.

Change

• system/web/routing/Router.cfc: corrected module lookup and error message from bxai → bx-ai

// Before
if ( !getModuleList().keyArray().findNoCase( "bxai" ) ) {
    throw(
        type   : "ModuleNotFoundException",
        message: "The BoxLang AI module (bxai) is required for AI/MCP routing. Install it via: box install bxai"
    );
}

// After
if ( !getModuleList().keyArray().findNoCase( "bx-ai" ) ) {
    throw(
        type   : "ModuleNotFoundException",
        message: "The BoxLang AI module (bx-ai) is required for AI/MCP routing. Install it via: box install bx-ai"
    );
}

[Copilot]

Pull request overview

Fixes the BoxLang AI module installation guidance shown by the toAi() / toMCP() routing guard in Router.cfc, intended to point users at the correct ForgeBox slug when the module is missing.

Changes:

• Update the missing-module guard to reference bx-ai instead of bxai.
• Update the thrown ModuleNotFoundException message to suggest box install bx-ai.