feat: preserve evidence in workspace artifacts

backend/src/workspaces/registry.ts

@@ -790,6 +790,8 @@ export class WorkspaceRegistry {
   }
 
   private expectedSnapshotFiles(state: ActiveState): string[] {
+    // P1 snapshots only descriptors and derived public docs. P6 owns revision-pinned
+    // workspace-content materialization and its recursive containment checks.
     return state.revisions.flatMap((revision) => revision.state === "operational"
       ? [`${revision.id}.yaml`, `${revision.id}.env.example`, `${revision.id}.md`]
       : [`${revision.id}.yaml`]);