Rocket Rust web framework. Covers routing, fairings, guards, state,
and testing. Use for type-safe, boilerplate-free Rust APIs.
USE WHEN: user mentions "rocket", "rust type-safe api", "rocket guards",
asks about "rocket fairings", "rocket state", "compile-time route checking",
"rust web macros", "rocket testing"
DO NOT USE FOR: Axum projects - use `axum` instead, Actix-web projects - use `actix-web` instead,
Warp projects - use `warp` instead, non-Rust backends