Add device row move history

docs/project-history-and-external-model-architecture.md

@@ -179,12 +179,16 @@ Completed foundation:
 - `circuit.insert` and `circuit.delete` persist a complete circuit block with
   zero, one or multiple device rows; undo restores all ids and fields without
   renumbering
+- `circuit-device-row.move` stores exact expected and target circuit/sort
+  positions for one or multiple rows, recalculates all affected reserve states
+  and reconstructs a deterministic inverse across multiple source circuits
 
 Remaining constraints before completing persistent history:
 
 - extend the concrete project-scoped command union and executors beyond the
-  Circuit field/insert/delete and CircuitDeviceRow field/insert/delete slices;
-  the generic versioned command envelope is complete
+  Circuit field/insert/delete and CircuitDeviceRow
+  field/insert/delete/existing-target-move slices; the generic versioned
+  command envelope is complete
 - route the remaining structural, synchronization and destructive domain
   writes through the shared command, revision and stack transaction boundary
 - replace the session-local frontend command stack only after server-side