feat: improve nullable detection and code structure #28

	name: PHP CI

	on:
	push:
	branches: [ "master" ]
	pull_request:
	branches: [ "master" ]

	permissions:
	contents: read

	jobs:
	build:
	runs-on: ubuntu-latest

	strategy:
	matrix:
	php-version: [8.4]

	steps:
	- uses: actions/checkout@v4

	# Setup PHP
	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php-version }}
	coverage: xdebug
	extensions: mbstring, json, pdo, pdo_sqlite, sqlite3, xdebug

	# Validate composer.json and composer.lock
	- name: Validate composer.json and composer.lock
	run: composer validate --strict

	# Cache Composer dependencies
	- name: Cache Composer packages
	id: composer-cache
	uses: actions/cache@v3
	with:
	path: vendor
	key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
	restore-keys: \|
	${{ runner.os }}-php-

	# Create var/cache folder for PHP-CS-Fixer (optional if using cache)
	- name: Create cache folder
	run: mkdir -p var/cache

	# Install dependencies
	- name: Install dependencies
	run: composer install --prefer-dist --no-progress --no-interaction

	# PHPUnit
	- name: Run PHPUnit tests with coverage
	run: XDEBUG_MODE=coverage vendor/bin/phpunit

	# PHPCS
	- name: Check coding standards
	run: vendor/bin/php-cs-fixer fix --dry-run --diff --using-cache=no

	# PHPStan
	- name: Run PHPStan
	run: vendor/bin/phpstan analyse -c phpstan.neon --level 1

	# Upload coverage to Codecov
	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v5
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_ORG_TOKEN }}
	with:
	files: var/clover.xml
	fail_ci_if_error: true

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