feat: add code environment support for Cascade - Windsurf's AI Agent

[Ishoshot]

Add Windsurf IDE Support

Description

This PR adds support for Windsurf IDE to Laravel Boost, enabling Windsurf users to receive Laravel-specific AI guidelines through Cascade (Windsurf's AI assistant).

Motivation

Windsurf is a powerful AI-first IDE, and Laravel developers using Windsurf should have access to Laravel Boost's AI guidelines to improve their development experience. Currently, Windsurf users are excluded from the automated guideline installation process.

Implementation

Agent-Only Architecture

Windsurf is implemented as an Agent-only code environment:

• ✅ Implements Agent interface - Provides AI guidelines
• ❌ Does NOT implement McpClient interface - No automated MCP configuration

Technical Rationale

Unlike other supported IDEs (Cursor, PhpStorm, VSCode), Windsurf handles MCP server configuration differently:

IDE	MCP Configuration	Laravel Boost Approach
Cursor	.cursor/mcp.json (per-project)	✅ Automated via McpClient
PhpStorm	.junie/mcp/mcp.json (per-project)	✅ Automated via McpClient
VSCode	.vscode/mcp.json (per-project)	✅ Automated via McpClient
Windsurf	~/.codeium/windsurf/mcp_config.json (global)	❌ Manual configuration only

Since Windsurf only supports global MCP configuration, Laravel Boost respects the principle of not modifying users' global settings automatically. However, users can manually configure the MCP server if desired.

Configuration Details

// Windsurf Configuration
Agent Name: "Cascade"
Guidelines Path: ".windsurf/rules/laravel-boost.md"
Project Detection: ".windsurf" directory
System Detection: Standard paths across macOS/Linux/Windows

## User Experience

### Automated Installation
When running `php artisan boost:install`, Windsurf users will now:

1. See Windsurf as an available option for AI guidelines
2. Receive Laravel-specific guidelines in `.windsurf/rules/laravel-boost.md`
3. Have Cascade automatically discover and apply these guidelines

Screenshots from my usage :)

Installation

Boost's Discovery in Cascade

Cascade In Action