Update @github/copilot to 1.0.51-2 (#1342)

* Update @github/copilot to 1.0.51-2

- Updated nodejs and test harness dependencies
- Re-ran code generators
- Formatted generated code

* Fix Go E2E test: use %f for float64 TotalNanoAiu fields

The TotalNanoAiu field was changed from int to *float64 in the generated
types, but the test format strings still used %d. This caused go vet to
fail on all three Go CI legs.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: github-actions[bot]

dotnet/src/Generated/Rpc.cs

@@ -473,7 +473,7 @@ func TestRpcSessionStateE2E(t *testing.T) {
 			t.Errorf("Expected non-zero sessionStartTime, got %s", metrics.SessionStartTime)
 		}
 		if metrics.TotalNanoAiu != nil && *metrics.TotalNanoAiu < 0 {
-			t.Errorf("Expected non-negative totalNanoAiu, got %d", *metrics.TotalNanoAiu)
+			t.Errorf("Expected non-negative totalNanoAiu, got %f", *metrics.TotalNanoAiu)
 		}
 		for k, detail := range metrics.TokenDetails {
 			if detail.TokenCount < 0 {
@@ -482,7 +482,7 @@ func TestRpcSessionStateE2E(t *testing.T) {
 		}
 		for modelName, modelMetric := range metrics.ModelMetrics {
 			if modelMetric.TotalNanoAiu != nil && *modelMetric.TotalNanoAiu < 0 {
-				t.Errorf("Expected non-negative totalNanoAiu for model %q, got %d", modelName, *modelMetric.TotalNanoAiu)
+				t.Errorf("Expected non-negative totalNanoAiu for model %q, got %f", modelName, *modelMetric.TotalNanoAiu)
 			}
 			for tokenType, detail := range modelMetric.TokenDetails {
 				if detail.TokenCount < 0 {

dotnet/src/Generated/SessionEvents.cs

@@ -56,7 +56,7 @@
     "author": "GitHub",
     "license": "MIT",
     "dependencies": {
-        "@github/copilot": "^1.0.51-1",
+        "@github/copilot": "^1.0.51-2",
         "vscode-jsonrpc": "^8.2.1",
         "zod": "^4.3.6"
     },