ctx-company

Minimal Rust refactor procedure: implement the requested change and hold it to this repo's Rust engineering-standards and gate-conventions, then review once against the same doctrine — no refinement loop, no commit.

Shared Rust doctrine: worker/reviewer roles specialized for Rust changes, plus the engineering-standards and gate-conventions resources this repo's Rust core is held to, for dependents that declare it instead of pasting the roles or doctrine into their own…