Expand description
Wire types + versioning contract between cc-lb host and wasm plugins.
Public surface for plugin authors: hook wire types defined per version
submodule. pub use v1::* at crate root re-exports the current baseline
for ergonomic import. New wire versions add new submodules (pub mod v2;)
without breaking existing code.
See docs/plugin-author-guide.md and docs/rfc/0001-plugin-runtime-vnext.md
for the versioning + admission-gate contract.