Introduces per-player localization for menu categories and items using translation keys and IStringLocalizer, allowing modules and the main plugin to display menu names in the player's language. Refactors menu registration and builder logic to use translation keys, updates API and documentation, and adds database provider upsert query abstraction for player IPs. Also updates version to 1.7.8-beta-4 and corrects a translation string typo.
Commented out fun command implementations (noclip, godmode, freeze, unfreeze, resize) in funcommands.cs and removed their registration from RegisterCommands.cs. These commands are now intended to be provided by the new CS2-SimpleAdmin_FunCommands external module, improving modularity and maintainability.
