Problem. The identity capability is a stub: sign and sign_typed_data return Unsupported. Modules declaring identity as required pass the manifest check but fail at runtime. Scope. A real keystore-backed signing backend for the host (files: crates/nexum-engine/src/host/impls/identity.rs and successors after the M0 restructure). Consumer. The egress guard's identity checkpoint and, later, the postage adapter's requires-signing path; this issue gates the guard epic. Notes. Split out of the former four-stub umbrella; the http, remote-store, and messaging stubs are tracked separately by consumer.
Problem. The identity capability is a stub: sign and sign_typed_data return Unsupported. Modules declaring identity as required pass the manifest check but fail at runtime. Scope. A real keystore-backed signing backend for the host (files: crates/nexum-engine/src/host/impls/identity.rs and successors after the M0 restructure). Consumer. The egress guard's identity checkpoint and, later, the postage adapter's requires-signing path; this issue gates the guard epic. Notes. Split out of the former four-stub umbrella; the http, remote-store, and messaging stubs are tracked separately by consumer.