fix: rebuild props panel when interaction type changes

Without this, switching type to 'module' didn't show the moduleId,
ports, and Open IDE button until manually reselecting the entity.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

editor.html

@@ -1218,6 +1218,8 @@ function applyPropChange(prop, value, inputType) {
 
     updateEntityList();
     render();
+    // Rebuild props panel when type changes (shows/hides type-specific fields)
+    if (prop === 'type') updateProps();
 }
 
 // ==================== Export ====================