feat: install and configure Laravel MCP

[ibourgeois]

Summary

• add Laravel MCP as an explicit application dependency
• publish a minimal MCP config and ai routes file with a local katra handle
• add a small Katra MCP server, read-only workspace tool, and smoke test

Testing

• /Users/ibourgeois/Library/Application Support/Herd/bin/php84 artisan test --compact tests/Feature/McpSmokeTest.php

Closes #32

[Copilot]

Pull request overview

Adds Laravel MCP to the app, wiring up a local katra MCP handle with a minimal server + read-only tool, and documents/validates the setup via a smoke test.

Changes:

• Add laravel/mcp as an application dependency.
• Publish minimal MCP config and a new routes/ai.php entry registering the local katra server.
• Add KatraServer, a read-only DescribeWorkspace tool, and a feature smoke test.

Reviewed changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
composer.json	Adds Laravel MCP dependency required for MCP server/tool support.
config/mcp.php	Introduces MCP OAuth redirect domain configuration.
routes/ai.php	Registers the local MCP handle katra pointing at the new server.
app/Mcp/Servers/KatraServer.php	Defines the MCP server and registers the tool list.
app/Mcp/Tools/DescribeWorkspace.php	Implements a read-only, idempotent tool returning workspace metadata.
tests/Feature/McpSmokeTest.php	Smoke-tests that the tool is exposed and returns expected content.
README.md	Documents MCP setup, how to start the server, and where the smoke test lives.

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