chore: autofix lints

[justlevine]

What

This PR runs

• npm run lint:css:fix
• npm run lint:php:fix
• npm run lint:js:fix

and commits the results.

Important

This PR is a follow up to #27 , which should be merged first.

Why

Related Issue(s):

How

Testing Instructions

Screenshots

Additional Info

Checklist

• I have read the Contribution Guidelines.
• I have read the Development Guidelines.
• My code is tested to the best of my abilities.
• My code passes all lints (ESLint etc.).
• My code has detailed inline documentation.
• I have updated the project documentation as needed.

[Copilot]

Pull request overview

This PR applies automated linting fixes across the codebase by running npm run lint:css:fix, npm run lint:php:fix, and npm run lint:js:fix. The changes primarily enforce coding standards including short array syntax, early exit patterns, static closures, and improved code organization.

Key changes:

• Converted PHP array syntax from array() to [] throughout the codebase
• Refactored control structures to use early exits for better readability
• Updated webpack build paths from assets/build to build
• Added comprehensive test infrastructure (PHPUnit, PHPStan configuration)
• Updated project documentation and CI/CD workflows

Reviewed changes

Copilot reviewed 48 out of 57 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
webpack.config.js	Simplified build configuration with updated output paths
uninstall.php	Array syntax updates and early exit refactoring
tests/bootstrap.php	New PHPUnit test bootstrap file
phpunit.xml.dist	New PHPUnit configuration
phpstan.neon.dist	New PHPStan static analysis configuration
phpcs.xml.dist	Comprehensive PHPCS ruleset with multiple coding standards
package.json	Major dependency updates and reorganized scripts
onedesign.php	Restructured plugin initialization with autoloader
inc/traits/trait-singleton.php	Modernized with static::class and array syntax
inc/classes/rest/*.php	Array syntax and early exit pattern updates
inc/classes/*.php	Consistent code style improvements
composer.json	Enhanced configuration with additional dev dependencies
.github/workflows/*.yml	New CI/CD workflows for testing and releases
Documentation files	Updated setup instructions and contribution guidelines

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