Bare-naked CLI handlers mirroring the SDK’s cli::command tree
1-for-1. Each leaf file here pairs with an SDK leaf at the same
module path; the SDK leaf defines the typed Request / Response /
ResponseItem shapes, this side defines the execute / execute_transform
(and execute_streaming / execute_streaming_transform for chunk-or-id
leaves) that actually do the work.
In-process CommandExecutor implementor backed by the CLI’s own
leaf handlers. Lets programmatic consumers drive the SDK’s per-leaf
execute<E> entry points against the CLI’s local logic without
spawning a subprocess.
What run yields, mirroring the two SDK root dispatch entry
points. The arm is chosen by whether the parsed request carries an
output transform (RequestBase::transform):