fix(auth): harden restore verification transaction

backend/src/operator-command.ts

@@ -91,6 +91,7 @@ async function workspaceIntegrity(config: AppConfig): Promise<{
   ready: true;
   state: "uninitialized" | "active";
   workspaces: number;
+  fingerprint: string;
 }> {
   const integrity = await new WorkspaceRegistry(config.workspaceRegistry).verifyStoredState();
   return { ready: true, ...integrity };