Add precommit hook with automated formatting

[obenland]

Proposed changes:

• Adds a git hook infrastructure using Husky.
• Adds precommit hook that
  • sorts namespace imports in changed PHP files.
  • checks for unused imports in changed PHP files and aborts the commit if it finds any (I thought that was better than automatically removing them and potentially create fatal errors. Happy to change that though).
  • runs phpcbf on changed PHP files.
  • runs npm run format.
• Updates all existing php files with correct namespace imports.

Testing instructions:

• Check out this branch.
• Run npm install.
• Add an unused namespace import in a php file.
• Attempt to commit that change.

[Copilot]

Pull Request Overview

This PR adds precommit hook infrastructure using Husky to automate code formatting and enforce code quality standards. The hooks sort namespace imports, check for unused imports, run PHP code formatting, and ensure consistent JavaScript formatting before commits.

• Adds Husky precommit hook that automatically formats PHP and JavaScript files
• Sorts and validates namespace imports in all existing PHP files
• Updates prettier configuration to exclude additional directories

Reviewed Changes

Copilot reviewed 70 out of 72 changed files in this pull request and generated 3 comments.

File	Description
package.json	Adds Husky dependency and prepare script
.husky/pre-commit	Implements precommit hook for formatting and import validation
.prettierignore	Updates ignore patterns for formatting
Multiple PHP files	Alphabetically sorts namespace imports according to new standards

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[Copilot]

Empty line added after use statements should be removed. The existing formatting was correct with no blank line between use statements and the class comment.

Suggested change

[obenland]

@pfefferle Do you have a preference for or against separating class imports from function imports?

[pfefferle]

I would prefer to separate them!

[pfefferle]

Can you maybe say some words about husky and why you have used it?