//! Extension registry: metadata catalog for tools and channels.
//!
//! The registry provides a central index of all available extensions (WASM tools
//! and channels) with their source locations, build artifacts, authentication
//! requirements, and grouping via bundles.
//!
//! ```text
//! registry/
//! ├── tools/ <- One JSON manifest per tool
//! ├── channels/ <- One JSON manifest per channel
//! └── _bundles.json <- Bundle definitions (google, messaging, default)
//! ```
pub use ;
pub use RegistryInstaller;
pub use ;