fix: make bookmark diff selection a name-first list

Bookmarks shared revision-graph rendering, allowing ancestry lanes and revision metadata to crowd out reference names. Restrict graph projection to Revisions and reuse flat bookmark rows with commit summaries.

src/diff.rs

@@ -1605,6 +1605,10 @@ impl DiffState {
     }
 
     fn rebuild_picker_graph(&mut self) {
+        if self.categories().get(self.category) != Some(&Category::Revisions) {
+            self.picker_graph.clear();
+            return;
+        }
         let mut result = BTreeMap::new();
         let Some(catalog) = &self.catalog else {
             self.picker_graph = result;

src/main.rs

@@ -85,7 +85,7 @@ Restart: :restart closes clean buffers; unsaved buffers remain open and block re
 Tabs: :tab.new, :tab.previous, :tab.next, :tab.close, :tab.force_close
       Tabs retain pane layouts and independent views; close protects exclusively displayed unsaved edits
 Markdown links: :follow_link (primary caret; local files only)
-Diff: :diff (Normal); floating jj log graph; choose Before then After; selected Before is marked inline
+Diff: :diff (Normal); floating jj revision graph / bookmark list; choose Before then After; Before marked inline
       Before and historical/remote After stay read-only; Tab/Shift+Tab categories/Normal focus
       All text panes use native motions, selections and copy; read-only panes reject edits/saves
       Switching Before/After preserves the aligned cursor row and display column

src/tui.rs

@@ -3905,20 +3905,15 @@ fn draw_diff(
                 let width = usize::from(results.width);
                 let change = metadata.change_id.as_str();
                 let change = change.get(..12).unwrap_or(change);
-                let bookmark = if revision.category == crate::diff::Category::Bookmarks {
-                    format!("[{}] ", display_text(&revision.label))
-                } else {
-                    String::new()
-                };
                 let label = format!(
-                    "{} {}{bookmark}{}{} {} {} {} {}",
+                    "{} {}{}{} {} {} {} {}",
                     if index == diff.selected { ">" } else { " " },
                     prefix[0],
                     display_text(change),
                     before_badge,
                     display_text(&metadata.author),
                     display_text(&metadata.timestamp),
-                    if metadata.bookmarks.is_empty() || !bookmark.is_empty() {
+                    if metadata.bookmarks.is_empty() {
                         String::new()
                     } else {
                         format!("[{}]", display_text(&metadata.bookmarks))
@@ -3939,7 +3934,7 @@ fn draw_diff(
                     lines.push(Line::styled(
                         visible_line(
                             &format!(
-                                "{} {}{}{}{bookmark}{} · {}",
+                                "{} {}{}{}{} · {}",
                                 if index == diff.selected { ">" } else { " " },
                                 prefix[0],
                                 if prefix[1].contains('~') { "~ " } else { "" },
@@ -3975,6 +3970,11 @@ fn draw_diff(
                 display_text(&revision.label),
                 padding = decoration_width.saturating_sub(symbol.width()),
             );
+            let description = diff
+                .graph_revision(revision)
+                .map_or(revision.description.as_str(), |(_, metadata)| {
+                    metadata.description.as_str()
+                });
             let width = usize::from(results.width);
             if row_height == 2 {
                 lines.push(Line::styled(visible_line(&label, 0, width), style));
@@ -3983,7 +3983,7 @@ fn draw_diff(
                         &format!(
                             "{:indent$}{}",
                             "",
-                            display_text(&revision.description),
+                            display_text(description),
                             indent = 2 + decoration_width,
                         ),
                         0,
@@ -3994,7 +3994,7 @@ fn draw_diff(
             } else {
                 lines.push(Line::styled(
                     visible_line(
-                        &format!("{label} · {}", display_text(&revision.description)),
+                        &format!("{label} · {}", display_text(description)),
                         0,
                         width,
                     ),