Persist circuit structure edits

docs/circuit-list-editor-interactions.md

@@ -123,10 +123,12 @@ Cross-section device moves show confirmation-required feedback before drop. The
 ## Undo/Redo
 
 Undo/redo wraps editor operations as command objects and reloads the tree after
-each command. Existing Circuit and device-row cell edits execute persistent
-project commands; their toolbar undo/redo calls the project-wide server
-history. Other covered operations still use their existing direct API writes
-and session-local inverse callbacks during the cutover.
+each command. Existing Circuit and device-row cell edits plus standalone
+insert/delete actions execute persistent project commands; their toolbar
+undo/redo calls the project-wide server history. New entities receive stable
+UUIDs before insertion, and deletion undo restores those same ids. Move,
+reorder and renumber operations still use their existing direct API writes and
+session-local inverse callbacks during the cutover.
 
 Covered operations include:
 
@@ -140,5 +142,5 @@ Covered operations include:
 Current limitations:
 
 - the visible editor stack is still session-local and is empty after reload
-- structural and destructive editor actions are not all connected to the
-  persistent command boundary yet
+- move, reorder and renumber editor actions are not connected to the persistent
+  command boundary yet