This commit includes a minor modification in the `phpstan.dist.neon` file where the `excludePaths`
value has been updated. Besides, a conditional check has been added in the `onPackageSetup`
function, under `Events.php` in the `src/QUI/ERP/Coupons` directory, to only proceed if the package
name is 'quiqqer/coupons'. This additional check generally improves the efficiency and correctness
of the package setup process.

Reviewed code and made several improvements which provide better error handling, code quality, and
resolved warnings. The changes include:
- Syntax modifications for better readability,
- Ensured variable type checks before using methods,
- Resolved warning instances in phpstan,
- Adapted code to comply with modern PHP nullable type indicator.

Alongside, made version update in phive/phars.xml. Also, unnecessary comments or instances are
removed for a cleaner code.

Related: #16

verfasst von Patrick Müller vor 1 Jahr und Henning Leutz committete vor 10 Monaten

(cherry picked from commit 017e2453)

feat: coupon code now saved in order history; option to let customer choose coupon code delivery type

feat: coupon send via mail now optional; refactor: delete hidden discounts associated with coupons when deleted

fix: candyman-gmbh/projektplanung#121 - consider order creation -> discount check during creation is disabled