//! HTTP transport layer for the x402 payment protocol.
//!
//! This crate provides HTTP middleware for both client and server roles
//! in the x402 payment protocol.
//!
//! # Feature Flags
//!
//! - `server` — Axum/Tower middleware for payment gating
//! - `client` — reqwest-middleware for automatic 402 handling
//! - `telemetry` — Tracing instrumentation
use tokio as _;
use wiremock as _;