Function activity_id_for

atomic-cli/src/commands/provenance/mapping.rs:26–31

Build a unique activity id for a turn's graph. All turns of one session share `session_id`, so keying the activity purely on `session_id` would collide across turns. We disambiguate with the explained change's base32 so each turn-activity is uniquely addressable (and `turnParent` resolution stays consistent with this scheme). The id is keyed on the GRAPH itself — ` #<first-explained-c

(graph: &ProvenanceGraph)

/// of which of its explained changes was traced, so a child turn's `turnParent`
/// reference to it always matches.
pub fn activity_id_for(graph: &ProvenanceGraph) -> String {
    match graph.changes_explained.first() {
        Some(h) => format!("{}#{}", graph.session_id, h.to_base32()),
        None => graph.session_id.clone(),
    }
}

/// Map a loaded `ProvenanceGraph` into the plain projector input.
///