anthropic-async 0.4.0

Anthropic API client for Rust with prompt caching support
Documentation
# CLAUDE.md - anthropic-async

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- Crate: anthropic-async
- Path: crates/services/anthropic-async/
- Role: lib
- Family: services
- Integrations: mcp=false, logging=false, napi=false
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## Overview

Briefly describe the purpose of this crate and how to use it.

## Quick Commands

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```bash
# Lint & Clippy
cargo fmt -p anthropic-async -- --check
cargo clippy -p anthropic-async --all-targets -- -D warnings

# Tests
cargo test -p anthropic-async

# Build
cargo build -p anthropic-async
```
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## Notes

Add any human-authored notes below. Content outside autogen blocks is preserved by xtask sync.