Function is_index_scaffold

atomic-cli/src/commands/memory/list.rs:358–367

Is this `memory/…` entry the vault's index scaffold rather than a real canonical memory? The default `memory/MEMORY.md` installed by `init_vault` carries frontmatter `{"name":"MEMORY","type":"index"}` — it has no `uid`/`memoryKind` and is not attestable, so it must not appear as a row in the canonical, attestation-aware list. Detection reads the entry's declared `type == "index"` frontmatter (fail

(repo: &Repository, path: &str)

/// `type == "index"` frontmatter (fail-open: a read error is treated as "not an
/// index" so a genuine memory is never silently hidden).
fn is_index_scaffold(repo: &Repository, path: &str) -> bool {
    let Ok(Some(entry)) = repo.vault_retrieve(path) else {
        return false;
    };
    serde_json::from_str::<serde_json::Value>(&entry.frontmatter_json)
        .ok()
        .and_then(|v| v.get("type").and_then(|t| t.as_str()).map(str::to_owned))
        .as_deref()
        == Some("index")
}

#[cfg(test)]
mod tests {