feat: show jj ancestry in the floating diff picker

tests/unit/editor.rs

@@ -1836,6 +1836,7 @@ fn hidden_tab_diff_results_restore_visible_insert_interaction_and_route_request_
     let catalog = || {
         Outcome::Catalog(Catalog {
             kind: RepoKind::Git,
+            graph: Default::default(),
             entries: [
                 RevisionTarget::Commit("base".into()),
                 RevisionTarget::Working,
@@ -2627,6 +2628,7 @@ fn diff_results_bind_the_owning_pane_without_disturbing_focused_document_or_mode
         id,
         Ok(Outcome::Catalog(Catalog {
             kind: RepoKind::Git,
+            graph: Default::default(),
             entries: vec![Revision {
                 target: RevisionTarget::Working,
                 label: "Working".into(),
@@ -3039,6 +3041,7 @@ fn working_diff_with_revisions(
         id,
         Ok(Outcome::Catalog(Catalog {
             kind: RepoKind::Git,
+            graph: Default::default(),
             entries: vec![
                 revision(RevisionTarget::Commit("base".into()), "base"),
                 revision(RevisionTarget::Working, "Working"),
@@ -3113,6 +3116,7 @@ fn historical_diff_with_revisions(
         id,
         Ok(Outcome::Catalog(Catalog {
             kind: RepoKind::Git,
+            graph: Default::default(),
             entries: vec![revision("base"), revision("head")],
             notice: None,
         })),