#[Version]Expand description
#[Version("v1")] on a #[Controller] impl — mounts every route under
/v1/... and records the version in each RouteSpec. Marker; consumed by
#[Controller].
#[Version]#[Version("v1")] on a #[Controller] impl — mounts every route under
/v1/... and records the version in each RouteSpec. Marker; consumed by
#[Controller].