phoxal-runtime-contract

Shared, transport-neutral process-boundary contracts for the Phoxal runtime. This crate owns participant launch data, embedded metadata, identities, and execution-origin types. Application participants normally use these contracts through the phoxal facade.

Compatibility between a phoxal-cli and a built participant is declared in one place: the ParticipantMetadata document each binary embeds at compile time, carrying the API revision and the five document schemas it speaks (bus, launch, robot, component, simulation). There is no Cargo package-metadata table, no version file, and no framework-SemVer floor anywhere in the contract. The authoritative identifier constants live in the crate that owns each contract and are re-exported together as phoxal::__private::compatibility.