Introduces a Zod schema for the Minecraft session join endpoint, validating accessToken, selectedProfile, and serverId. Updates ValidationError to support serialization via YggdrasilError and SessionError for improved error formatting.
Replaces custom logger instantiation with a shared logger import across modules and routes. Moves player property and privilege management from authRepository to a new userRepository, expanding userRepository with additional user management functions (ban, unban, preferences, privileges, bans). Updates service and route files to use userRepository where appropriate. Adds new session join route and schema, and utility for UUID formatting.
Add environment example, update .gitignore, and switch license to AGPL v3. Introduce error handling classes, ESLint config, and main modules for database, logging, certificate management, and utility functions. Add authentication routes, schemas, and service layer for a modular REST API. Update README and set up repository structure for further development.
