inputbooster

Fixed CRITICAL - the client crashed on startup. Moving the accessor mixins from interfaces to classes (3.1.4) was not enough: Mixin merges every member of a class-form mixin into the target, so the public static helper methods added in 3.1.4 aborted the game with "contains non-private static method". The helpers now live in MixinAccess, a plain utility class, and each mixin holds nothing but its accessor or invoker. Accessor mixins are now minimal by contract. MixinDeclarationTest additionally fails the build if a mixin declares a static method or a non-private constructor. Verified to fail when a static helper is put back. Changed One branch per Minecraft version. fabric-26.2 builds only 26.2 and fabric-26.3 only 26.3; each pins minecraft_version, the dependency range and the Fabric API version in fabric/gradle.properties, so no build-time overrides are needed. NeoForge is paused. The CI job is gone; the NeoForge sources stay in the repository but are not built or released until they are ported separately. All 3.1.0 - 3.1.4 releases are marked as prereleases, because each of them shipped a jar that could not start the game. docs/MINECRAFT_VERSION_COMPATIBILITY.md documents every 26.2 / 26.3 API difference the mod touches and the mixin rules above, with the verification method.