fix: bootstrap registry on first workspace list

backend/src/workspaces/registry.ts

@@ -155,6 +155,12 @@ export class WorkspaceRegistry {
   }
 
   async list(): Promise<WorkspaceRevision[]> {
+    const active = await this.tryActiveState();
+    if (active) return active.revisions;
+    // A clean installation has no active snapshot until the first registry operation. Keep
+    // this lazy so health/startup remain available when Git is temporarily unreachable, while
+    // still refusing corrupted existing state (tryActiveState throws instead of returning none).
+    await this.bootstrap();
     return (await this.activeState()).revisions;
   }