Merge remote-tracking branch 'origin/main' into plugin/host-model-api

# Conflicts:
#	crates/ocs_plugin_api/src/process/v4.rs
#	src/app/update/mod.rs

src/app/automation.rs

@@ -296,7 +296,7 @@ impl OpenCADStudio {
         match req["op"].as_str().unwrap_or("") {
             "new" => {
                 let i = self.active_tab;
-                self.tabs[i].scene.clear();
+                self.tabs[i].scene.reset_to_new_drawing();
                 self.tabs[i].scene.material_base_dir = None;
                 self.tabs[i].current_path = None;
                 // The headless session starts on the welcome (Start) tab, which
@@ -1459,7 +1459,8 @@ mod tests {
         doc.add_entity(acadrust::EntityType::Circle(good)).unwrap();
         let mut corrupt = acadrust::entities::Circle::new();
         corrupt.center = acadrust::types::Vector3::new(1.0, 1.0, 0.0);
-        corrupt.radius = 0.0; // io::is_entity_corrupt rejects a zero-radius circle
+        // An absurd radius is rejected; a zero radius is valid.
+        corrupt.radius = 1.0e11;
         doc.add_entity(acadrust::EntityType::Circle(corrupt))
             .unwrap();
         let bytes = crate::io::save_to_bytes(&doc, "dxf", doc.version)