Contents Director

Added

• NeoForge 1.21.9+ FML early-service integration, allowing Contents Director to run before the mods-folder scan; the universal JAR retains the Forge ModLauncher and LaunchWrapper entry points.
• NeoForge 1.21.9 dedicated-server early-start smoke coverage and a universal-JAR Java 8 class-file check in CI.
• NeoForge loader metadata alongside Forge for Modrinth and CurseForge publication.

Fixed

• Resolve URL-derived filenames safely for mirror and root URLs.
• Load bundled localization under constrained class loaders, including LaunchWrapper environments.
• Use Contents Director as the default UI brand and a generic install-progress message when no modpack configuration is present.

Known limitations

• The macOS external UI helper does not yet inherit the configured UI theme; tracked in #23.