runelite/plugin-hub ? reverse-engineered prompt

Build me a simple RuneLite plugin hub repository that lets people submit and track external plugins that are not officially supported.

I want the repo to have a clean structure for plugin entries, a place for plugin metadata files, and basic checks so submissions are easy to review. Please include a README that explains how someone can add a new plugin, update an existing one, and point to the right repository and commit hash for each plugin. Keep it focused on the plugin hub workflow, not a full app.

Make it feel ready for real contributors, with clear naming, a sensible default setup, and anything needed so the project can be opened and maintained in a normal IDE. If you need to look up current RuneLite plugin hub conventions or docs online, go ahead and do that.