Replace manual hex encoding loop with `format!("{:x}", Sha256::digest(...))`,
which is more idiomatic and concise.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace manual hex encoding loop with `format!("{:x}", Sha256::digest(...))`,
which is more idiomatic and concise.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>