Restore editor history after reload

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

@@ -60,7 +60,9 @@ Full event sourcing is not required. Current normalized tables remain the primar
 - After a page reload, the client requests the current revision and eligible history actions.
 - Commands include an expected project revision. A stale command is rejected instead of silently overwriting a newer project state.
 
-The current session-local frontend command stack is transitional. Editor modularization must separate command descriptions from React callbacks so commands can later be sent to and reconstructed by the server.
+The circuit-list editor uses the server state directly for operation
+eligibility. React callbacks only initiate forward commands and provide
+best-effort selection hints after the tree reload.
 
 ## Snapshot Storage
 
@@ -210,6 +212,9 @@ Completed foundation:
 - the editor's explicit renumber action uses this command; obsolete direct
   renumber and identifier-restore routes plus their transaction adapter are
   removed
+- the circuit-list editor loads project-wide undo/redo eligibility together
+  with the tree, retries revision mismatches and keeps Undo/Redo available after
+  page reloads without a session-local command stack
 - `project-device.sync-rows` records synchronization, disconnect and reconnect
   as one atomic multi-row operation; complete expected/target sync snapshots
   protect local values, links and override metadata against silent stale writes
@@ -219,11 +224,9 @@ Completed foundation:
   ids; delete undo restores links only from complete unchanged disconnected-row
   snapshots in the same transaction
 
-Remaining constraints before completing persistent history:
+Remaining constraints before completing project version history:
 
-- reconstruct the visible frontend history state after reload; Circuit and
-  CircuitDeviceRow operations plus ProjectDevice operations already use
-  persistent commands and project-wide undo
+- add a browsable revision timeline plus named logical snapshots and restore
 - extend project-scoped commands only when further project mutations are
   deliberately added to history; the generic versioned envelope is complete
 - do not model IFCGUID as an overloaded circuit equipment identifier