v0.1.18

Senior Rust reviewer skill

The setup wizard's SKILL.md now turns the agent into a senior Rust code reviewer instead of a linter wrapper. A new "Rust Expert Context" section carries 32 concrete flags across five domains (error handling, security, async/tokio, performance, architecture) that the agent applies while reading each flagged file, catching issues beyond what rust-doctor itself detects.

Sources: Rust API Guidelines, Alice Ryhl (Tokio), Luca Palmieri, RustSec advisories, the Rust Performance Book, Effective Rust, Oxide RFD 400.

Full Changelog: v0.1.17...v0.1.18