Release Checklist

• Update CHANGELOG.md with final date/version and review entries.
• Run cargo fmt if needed.
• Run cargo clippy --all-targets --all-features -- -D warnings.
• Run cargo test.
• Run key benchmarks (cargo bench --bench lru, --bench lru_k, --bench lfu).
• Verify docs with cargo doc --no-deps and spot-check new module docs.
• Confirm Cargo.toml version matches the release tag.
• Tag and push (e.g., git tag v0.1.0).