Update EntrustAbility.php

[itashia]

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Refactor for Clarity, Safety, and Maintainability

Structural Improvements

• Broke down complex logic into smaller, well-defined methods
• Introduced helper methods to normalize input and convert data types
• Separated permission-related logic for better separation of concerns

Readability Enhancements

• Clear PHPDoc comments added for methods and parameters
• Descriptive method and variable naming
• Consistent use of return types and parameter type hints

Use of Modern PHP Features

• Used return types and strict parameter type hinting
• Leveraged the null coalescing operator (??) for cleaner defaults

Maintainability

• Simplified the handle() method by offloading responsibilities
• Reduced code complexity for easier future updates
• Code is now easier to test, read, and extend

Compatibility

• No changes to existing behavior
• Fully backward-compatible with previous versions

Security

• Stronger input type validation
• Clearer and more explicit data checks

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These changes improve code quality without altering the original logic or behavior. The refactored structure makes future development and testing easier while maintaining full compatibility.