feat(dock): stacked edge rendering and drag-to-reorder preview

src/app/update/file.rs

@@ -553,11 +553,6 @@ impl OpenCADStudio {
                 section: self.start_section,
             },
             statusbar: self.statusbar_config.clone(),
-            properties: crate::app::config::PropertiesDockConfig {
-                side: self.properties_side,
-                width: self.properties_width,
-                auto_collapse: self.properties_auto_collapse,
-            },
             dock: {
                 let mut dock = self.dock.clone();
                 dock.ensure_settings();
@@ -600,13 +595,6 @@ impl OpenCADStudio {
         // (`refresh_recent_thumbs`) — never here on the boot path.
         self.start_section = cfg.start.section;
         self.statusbar_config = cfg.statusbar;
-        self.properties_side = cfg.properties.side;
-        self.properties_width = if cfg.properties.width.is_finite() {
-            cfg.properties.width.clamp(220.0, 600.0)
-        } else {
-            250.0
-        };
-        self.properties_auto_collapse = cfg.properties.auto_collapse;
         let mut dock = cfg.dock;
         dock.ensure_settings();
         self.dock = dock;