Fix Security Config
Add some other small Updates

Move Extracting of jwt Token, current Username and HttpRequest to JwtService
Add ChangeRole Service that changes the Roles of People

Lock some Endpoints
Add findByUsernameMethods

Delete CLI
Add Security Configs
Create a Role entity add create it as Many to Many with Students, Teachers and Admins
Create UserDetails Service and Repository
Make all Entities implement UserDetails
Add AuthorizationController. All Mappings are allowed
Every Other is authorized

Upsert Requests contain ID also and update the Entity
Create Requests just create

Fix Models

The Big Functions are not tested(Those that get the average of all students and that are sorting)

Getting average now with SQL Query
Add finding all Courses sorted by Name now with SQL Query

Use this Dto in the methods that calculate Average Grades for Courses

Add Annotations in Course, Student and Teacher for the Relations
Add Methods in CourseRepository that find a Course and fill the Students and Teacher from Foreign Keys
Add Fix findById and findAll in CourseService accordingly to the new Methods in CourseRepository

Simplify Controller Methods

Fix InMemoryRepoImplementations

Make them Entities and set up Tables