Install in Rust repos. Bundles the rust-utoipa OpenAPI skill (utoipa v5.4: Axum/Actix-web/Rocket) and wires rust-analyzer as the LSP for .rs files via .lsp.json, with a SessionStart hook that offers to install rust-analyzer (mise/rustup/cargo/brew or official) when it is missing in a Rust project. Prereq: rust-analyzer on PATH (`mise use rust-analyzer@latest`).