Function track_patch_fetched 

pub async fn track_patch_fetched(
    uuid: &str,
    tier: &str,
    ecosystem: &str,
    download_mode: &str,
    fallback_to_proxy: bool,
    api_token: Option<&str>,
    org_slug: Option<&str>,
)

Track a successful get. Reports patch identity + delivery mode and whether the call was downgraded to the public proxy after an auth-endpoint 401/403.