- Created a new `user_roles.php` file for managing user roles and permissions.
- Implemented pagination, filtering, and sorting for user roles.
- Updated `users.php` to use the new authorization structure for permissions.
- Changed API version from v1 to v2 in `users.php` for user data retrieval.
- Modified `webhook_mollie.php` to include account hierarchy in license creation.
- Refactored invoice generation and email sending logic in `webhook_mollie.php`.
- Introduced a new `webhook_paypal.php` file to handle PayPal webhook notifications.
- Implemented payment status updates and license creation logic in `webhook_paypal.php`.
- Added helper functions for PayPal webhook signature verification and access token retrieval.
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