//! Run an Anthropic Messages-compatible HTTP server backed by an agentix
//! upstream chain. Works with any client that hardcodes Anthropic's API
//! shape (Claude Code, claude-code-router, etc.).
//!
//! Run with:
//!
//! ```bash
//! ANTHROPIC_API_KEY=sk-ant-... cargo run --example 12_server_anthropic --features server-anthropic
//! ```
use Provider;
use ;
async