Module control 

Reserved for the client↔node control method catalog (request/response types, error taxonomy).

Populated by epic #1110 T2 (dig_ecosystem#1147) — the reconciliation decision on migrating the Control tier out of dig-rpc-protocol, plus the exact method/type/error set this crate owns.

Constants

CRATE_VERSION

The crate’s semantic version, exposed so consumers can assert compatibility at runtime without re-parsing Cargo.toml (mirrors the pattern used by the sibling contract crates).