Function verify_repo 

pub fn verify_repo(
    client: &GitHubClient,
    owner: &str,
    repo: &str,
    reference: &str,
    policy: Option<&str>,
    with_evidence: bool,
) -> Result<VerificationResult>

Verify repository-level dependency signatures at a given ref.

Scans for lock files (Cargo.lock, package-lock.json) at the specified reference and evaluates dependency signature evidence.

Only evaluates dependency-related controls (not PR or build controls) to avoid noisy NotApplicable results.