You can turn any part-time Apple position into a full-time position so long as the timing is right and you’ve showcased a great work ethic. Apple employees are passionate not only about the products, but about life and helping others embrace new technologies. If that messages with your core, going full-time should come with relative ease.
If you do well in your role, you will get an offer letter extending your contract by 1 year until you graduate. From there, if you express desire to stay with Apple, you will transition into a full time job. Apple has excellent job growth opportunity, so you'll definitely learn more about that on the job.