- Configured JWT token validation filter in security chain
- Added user role mapping with new t_user_role table and UserRole entity
- Implemented custom authentication entry point and access denied handler
- Updated UserDetailService to load user roles from database
- Added @PreAuthorize annotation support for method-level security
- Refactored build scripts to use java-library plugin and proper dependency scope
- Enhanced SQL schema with user role table and improved table comments
- Added global exception handler for AccessDeniedException
- Introduced ResponseCodeEnum constants for unauthorized and forbidden access
- Integrated TokenAuthenticationFilter into Spring Security filter chain
