Drop support for Laravel 6-10, require PHP 8.3+, add new linters

[inxilpro]

Summary

This PR modernizes LaraLint by dropping support for older Laravel versions and PHP versions, updating dependencies, and adding new linting capabilities for Laravel models.

Key Changes

Dependency Updates

• PHP: Bumped minimum version from 7.3 to 8.3
• Laravel: Dropped support for Laravel 6-10, now requires Laravel 11+ (11.0, 12.0, 13.0-dev)
• Orchestra Testbench: Updated to 9.0+, 10.0+, 11.x-dev
• PHPUnit: Added support for 12.5 and 13.0-dev

New Linters

• NoGuardedOrFillable: Flags models using the $guarded or $fillable properties, encouraging use of model attributes instead
• LintsModelRelations: New concern trait for detecting relationship methods on models
• LintsStringCase: New concern trait for snake_case validation utilities
• WalksModels: New concern trait for conditional walking of model classes

Code Quality Improvements

• Refactored OrderModelMembers to use new concern traits, reducing duplication
• Simplified printer selection in LintCommand using PHP 8.1 match expressions
• Modernized array filtering in LintCommand::targets() using arrow functions
• Added CLAUDE.md documentation file for AI-assisted development
• Fixed code style issues across multiple files (spacing, return type declarations)
• Removed unused imports and cleaned up code organization

Documentation

• Added comprehensive CLAUDE.md guide covering:
  • Project architecture and how LaraLint works
  • Linter strategies and how to write custom linters
  • Testing patterns and available assertions
• Updated README.md with minor formatting fixes

CI/CD

• Updated GitHub Actions workflow to test against Laravel 10, 11, and 12
• Adjusted matrix configuration for dependency versions

Migration Notes

Projects using LaraLint will need to:

• Update to PHP 8.3 or higher
• Update to Laravel 11 or higher
• Review any custom linters for compatibility with PHP 8.3+ syntax

https://claude.ai/code/session_01X6NprU6aPVR4DqXQj6HFW9