Incidental `cargo fmt --all` normalization of two pre-existing over-width `.lock()` chains in DevEmailSink; no behavior change. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Incidental `cargo fmt --all` normalization of two pre-existing over-width `.lock()` chains in DevEmailSink; no behavior change. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>