//! `cow-graph` — Layer 3 `GraphQL` transport primitives for the `CoW` Protocol SDK.
//!
//! **Placeholder**: `GraphQL` request/response envelope handling, retry
//! integration with `cow-http`, and the `GraphTransport` trait will
//! land here once extracted from `cow-subgraph`. Today the subgraph
//! crate uses the HTTP primitives directly.