Module command_registry 

Command registry abstraction for ARC server

The CommandRegistry is the source of truth for all command metadata. It tracks command state, timestamps, sizes, and errors.

Implementations:

• InMemoryCommandRegistry: In-memory implementation for tests and local dev (in this crate)
• PlatformCommandRegistry: Platform API integration (in alien-manager)

The ARC KV store holds only operational data: params/response blobs, pending indices, leases.

Structs

CommandEnvelopeData

Data needed to build an envelope during lease acquisition

CommandMetadata

Metadata returned when creating a command

CommandStatus

Full status for GET /commands/{id}

InMemoryCommandRegistry

In-memory implementation for tests and local development.

Traits

CommandRegistry

Abstraction for command metadata storage and lifecycle tracking.