This PR introduces automatic detection and AI guidelines support for the laravel/socialite package, following the same pattern for other packages.

Motivation:

Laravel Socialite is the official OAuth authentication package for Laravel, widely used for integrating social login functionality (GitHub, Google, Facebook, etc.). Given its official status and frequent use in modern Laravel applications requiring social authentication, this integration provides essential guidance for AIs implementing OAuth flows.

What's included:

• Auto-detection logic: Automatically detects if laravel/socialite is installed by scanning composer.lock
• Comprehensive AI guidelines: Added detailed guidelines covering:
  • Complete OAuth flow implementation (redirect → callback → user creation)
  • Provider configuration and environment setup
  • User data handling and database schema recommendations
  • Security best practices and error handling
  • Stateless authentication for API usage
  • Custom provider implementation
  • Testing strategies and examples
• Version-specific support: Includes both core guidelines and v5-specific enhancements
• Zero configuration: When laravel/socialite is detected, guidelines are automatically included without user intervention

Implementation details:

• Added isSocialiteInstalled() method in GuidelineComposer that scans composer.lock
• Enhanced GuidelineComposer to conditionally include Laravel Socialite guidelines
• Created comprehensive documentation in .ai/laravel-socialite/ following the established structure
• Includes comprehensive test coverage for detection logic

Files changed:

• src/Install/GuidelineComposer.php - Added auto-detection and guideline inclusion logic
• .ai/laravel-socialite/core.blade.php - Core guidelines (all versions)
• .ai/laravel-socialite/5/core.blade.php - Version 5 specific enhancements
• tests/Feature/Install/GuidelineComposerTest.php - Added test coverage
• README.md - Updated supported packages documentation