feat: Add UI benchmark driver and scenarios for graph interactions

- Introduced `ui_bench_driver.mjs` to read scenarios and fixture manifest, generating a deterministic run plan.
- Created `ui_bench_plan.md` outlining the purpose, scope, and next steps for the benchmark.
- Added `ui_bench_scenarios.json` containing various scenarios for graph UI interactions.
- Implemented tests for CLI commands, ensuring bundle verification and telemetry defaults.
- Developed schemas for orchestrator components, including replay manifests and event envelopes.
- Added mock API for risk management, including listing and statistics functionalities.
- Implemented models for risk profiles and query options to support the new API.

src/Cli/StellaOps.Cli/Services/BackendOperationsClient.cs

@@ -4512,11 +4512,11 @@ internal sealed class BackendOperationsClient : IBackendOperationsClient
     }
 
     // CLI-SDK-64-001: SDK update operations
-    public async Task<SdkUpdateResponse> CheckSdkUpdatesAsync(SdkUpdateRequest request, CancellationToken cancellationToken)
-    {
-        ArgumentNullException.ThrowIfNull(request);
-
-        EnsureBackendConfigured();
+    public async Task<SdkUpdateResponse> CheckSdkUpdatesAsync(SdkUpdateRequest request, CancellationToken cancellationToken)
+    {
+        ArgumentNullException.ThrowIfNull(request);
+
+        EnsureBackendConfigured();
         OfflineModeGuard.ThrowIfOffline("sdk update");
 
         var queryParams = new List<string>();
@@ -4554,9 +4554,9 @@ internal sealed class BackendOperationsClient : IBackendOperationsClient
             };
         }
 
-        var result = await response.Content.ReadFromJsonAsync<SdkUpdateResponse>(JsonOptions, cancellationToken).ConfigureAwait(false);
-        return result ?? new SdkUpdateResponse { Success = false, Error = "Empty response" };
-    }
+        var result = await response.Content.ReadFromJsonAsync<SdkUpdateResponse>(JsonOptions, cancellationToken).ConfigureAwait(false);
+        return result ?? new SdkUpdateResponse { Success = false, Error = "Empty response" };
+    }
 
     public async Task<SdkListResponse> ListInstalledSdksAsync(string? language, string? tenant, CancellationToken cancellationToken)
     {