RustAPI 0.2.0 #262

RustAPI 0.2.0 is on crates.io and tagged as v0.2.0. First semantic release: conventional commits + release-plz, MCP hardening, and a documented golden path.

cargo add rustapi-rs
cargo run -p rustapi-rs --example golden_path

Then open http://127.0.0.1:8080/docs.

• Walkthrough: docs/GOLDEN_PATH.md
• Changelog: CHANGELOG.md

If you want a first PR, there is a labeled starter: issue #261 (issue templates / MSRV placeholder). Questions belong in Q&A, not this thread.