WIP: Sheet Set Manager palette, wizard, properties and sheet set fields

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

src/app/update/dialog.rs

@@ -606,6 +606,10 @@ pub(super) fn on_ribbon_tool_click(&mut self, tool_id: String, event: ModuleEven
                     PanelId::PointCloudManager => {
                         self.pc_manager.show = false;
                     }
+                    PanelId::SheetSetManager => {
+                        self.sheet_set.show = false;
+                        self.ribbon.set_sheet_set(false);
+                    }
                     PanelId::Properties => {
                         self.show_properties = false;
                         self.ribbon.set_properties(false);
@@ -711,6 +715,7 @@ pub(super) fn on_ribbon_tool_click(&mut self, tool_id: String, event: ModuleEven
             PanelId::Browser => self.show_browser,
             PanelId::NodeGraph => self.show_node_graph,
             PanelId::PointCloudManager => self.pc_manager.show,
+            PanelId::SheetSetManager => self.sheet_set.show,
         }
     }