- Replaced the `community/` directory with `spec/`, which now serves as the portable plugin specification and authoring kit, including documentation, templates, and examples for contributors.
- Added new files for agent development, contributing guidelines, and a comprehensive README for the plugin spec kit.
- Updated existing documentation to reflect the new structure and clarify authoring rules for plugins.
- Introduced multiple example plugins under the new `spec/examples/` directory, showcasing various use cases and workflows for plugin authors.
This update enhances the clarity and accessibility of the plugin development process, providing a robust framework for contributors and external agents.
