Delete for everything: selection.delete removes sketch entities, features and sketches (with their dependents), construction planes, bodies (Remove feature), occurrences and components, and canvases in one undo step, with a dry run; Delete/Backspace and every menu's Delete go through it and ask first, listing what goes with it and what would fail; faces say Delete Face is not available yet; ui.confirm control method

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL

crates/engine/src/cmd/mod.rs

@@ -5,6 +5,7 @@
 mod browser;
 mod clipboard;
 mod component;
+mod delete;
 mod edit;
 mod face;
 mod features;
@@ -138,6 +139,7 @@ pub fn command_specs() -> Vec<&'static CommandSpec> {
     v.extend(component::COMMANDS.iter());
     v.extend(joints::COMMANDS.iter());
     v.extend(browser::COMMANDS.iter());
+    v.extend(delete::COMMANDS.iter());
     v.extend(edit::COMMANDS.iter());
     v.extend(clipboard::COMMANDS.iter());
     v.extend(parameters::COMMANDS.iter());