ВЕРСИИ (5)

## Added 3 new registry helpers: **Effects**: registers a MobEffect into the mob effect registry, same one-liner as everything else **Commands**: static helpers that skip the CommandRegistrationCallback boilerplate: a flat command, a permission-gated command, or an escape hatch that hands you the LiteralArgumentBuilder for arguments and subcommands **Features**: registers the code-level Feature type (placement logic); the ConfiguredFeature/PlacedFeature that configures it still belongs in a datapack Structures: registers the code-level StructureType; the actual Structure instance is likewise datapack-driven, not code-registered

Initial