Introduces endpoints and logic for uploading Minecraft skins via file or URL, storing textures, and managing player skins. Adds new repository and service methods for texture registration and retrieval, updates authorization handling, and uses process.cwd() for data paths. Also includes static serving of textures and rate limiting for skin uploads.
Introduces new routes under /minecraftservices and /mojangapi for profile, skin, cape, blocklist, privileges, and certificate management. Adds a comprehensive userService module to handle user-related operations, and extends userRepository with methods for username changes, skin/cape management, blocking, and profile lookups. Refactors username availability logic into authService, updates error handling, and improves logger and utility functions. Also updates route handlers to use consistent return statements and enhances route registration logging.
