ATTDEF: dialog, -ATTDEF prompts, tag display, Properties and ribbon

Attribute Definition dialog and Edit Attribute Definition dialog, -ATTDEF
with the reference prompts and modes (AFLAGS), tag shown in the drawing,
justification-aware grips, reworked Properties with validation, Home Block
slide-out and Insert Block Definition panel, and the codec patch for
ATTDEF DXF output and the R2013+ solid wire cache.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/ui/ribbon/mod.rs

@@ -1397,7 +1397,11 @@ fn render_group<'a>(
 
     column![
         tools_el,
-        draw_panel::group_title(group.title, open_dd),
+        draw_panel::group_title(
+            group.title,
+            &group.tools.iter().filter_map(item_id).collect::<Vec<_>>(),
+            open_dd,
+        ),
     ]
     .align_x(iced::Center)
     .spacing(0)