Expose project version history

docs/spec/07-implementation-phases-todo.md

@@ -371,6 +371,8 @@ Tasks:
 - add periodic logical project snapshots
 - [x] restore a historical snapshot as a new auditable revision with
   persistent undo/redo
+- [x] expose named snapshots, confirmed restore and the paginated revision
+  timeline on the project page
 - keep database backups separate from logical history
 
 Implemented foundation:
@@ -397,6 +399,8 @@ Implemented foundation:
 - named snapshot Create/List endpoints persist complete project-scoped runtime
   state with the source revision and SHA-256 without changing revision or
   undo/redo stacks
+- the project page lists, creates and explicitly restores named snapshots and
+  displays paginated revision metadata without exposing command payloads
 - a central application dispatcher reconstructs persisted commands and exposes
   optimistic command, undo and redo endpoints for Circuit and CircuitDeviceRow
   field updates