Update MigrationCommand.php

[itashia]

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Refactor and Cleanup for Better Maintainability

Structure

• Split the handle() method into smaller, single-responsibility methods
• Grouped related methods together for better logical flow

Readability

• Replaced repetitive code with array-driven table handling
• Improved method and variable naming for clarity
• Added clear, concise comments to guide future contributors

Modern PHP Features

• Added return types and typed parameters where applicable
• Cleaned up type safety across the class

Error Handling

• Separated file-writing logic from the core flow
• Isolated path checking to improve error clarity and reduce complexity

Compatibility

• Preserved all existing behavior and outputs
• The fire() method remains for backward compatibility with older Laravel versions

Why this matters

These changes make the code easier to read, test, and maintain—without changing its behavior. It's fully backward-compatible and sets a cleaner foundation for future improvements.