Shared HTTP wire DTOs (RFC-009 Phase 2) — moved from omnigraph-server's api module so server and CLI share one definition and one engine-result -> DTO mapping per verb. Plain serde/utoipa types; no transport, no server internals.
Shared HTTP wire DTOs (RFC-009 Phase 2) — moved from omnigraph-server's api module so server and CLI share one definition and one engine-result -> DTO mapping per verb. Plain serde/utoipa types; no transport, no server internals.