refactor: Move token validation logic to AuthService;
refactor: Remove Redis cache checks from middleware;
fix: Improve error handling for token validation;
refactor: Update Refresh method to use new validation logic;
chore: Clean up unused imports and comments
feat: implement Redis caching for terminated sessions
feat: add new session GUID queries for validation
refactor: extend Session model with last_refresh_exp_time
refactor: update token generation to include role and session
refactor: modify auth middleware to validate session status
refactor: replace GetUserSessions with GetValidUserSessions
chore: add uuid/v5 dependency
fix: update router to pass dependencies to auth middleware
chore: update SQL schema and queries for new expiration field
