Merge remote-tracking branch 'origin/main'

Slight changes and optimizing backend

Update README.md

added new DTOs (BookingDTO, MentorDTO, SessionDTO). Updated security by implementing new DTOs in controllers.

Created user(mentor), provided new services and logic. Added session with booking option, provided corresponding services and logic

Added JUnit Test for AuthService

Merge remote-tracking branch 'origin/main'

Minor fix

Authentication added, created basic models and services for user. Finished config for Jwt Auth. Request/Responses for login, register, me.

Authentication added, created basic models and services for user. Finished config for Jwt Auth. Request/Responses for login, register, me.

Initial project structure for SkillForge

Initial commit