fix: follow-ups to the merged PRs

- Selection filter: condition rows name INSERT as a block reference, as
  the object-type list does since #1726 (shared qselect_type_label).
- MCP: re-pin the tool schema digest for the view_background action
  added in #1722.
- -VIEW: fix an indentation slip and wrap two long lines from #1722.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/app/commands/view_presets.rs

@@ -155,7 +155,10 @@ impl OpenCADStudio {
                     for name in &doomed {
                         let removed = self.tabs[i].scene.document.views.remove(name);
                         if let Some(view) = removed {
-                            crate::scene::erase_background(&mut self.tabs[i].scene.document, view.background_handle);
+                            crate::scene::erase_background(
+                                &mut self.tabs[i].scene.document,
+                                view.background_handle,
+                            );
                         }
                         self.tabs[i].scene.document.delete_layer_state(&snapshot_name(name));
                     }