Single-line collapse in DocsServiceImpl::delete's $in match arm
flagged by `cargo fmt --check` post-review. The v1 HANDBACK §8
claimed `cargo fmt --check` was green; that claim was false against
HEAD at audit time. This fixes the diff so all three gates exit 0
on a fresh checkout. The follow-up HANDBACK update replaces §8's
false attestation with a post-fix one.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bf26a256e8