Introduced a new HttpHelper utility to centralize and standardize HTTP requests across the codebase, replacing direct usage of HttpClient. Updated authentication, asset, game, and Mojang API logic to use the new helper, improving maintainability and consistency. Also refactored game launch options for greater flexibility and configurability.
Introduces MojangAPI utility for handling skin uploads, cape management, and username changes via new backend endpoints. Updates Program.cs to support new IPC commands for skin selection, uploading, cape toggling, and username changes. Refactors frontend (logged.js, logged.html, logged.css) to provide UI for skin uploads, cape selection, and username changes, including new styles and blank cape asset. Refactors UserRecord to allow username mutation.
