Verify native profile runtime behavior

internal/framework/llm/adapter_capacity_test.go

@@ -24,6 +24,7 @@ import (
 
 func TestRolesShareBackendCapacityAndReleaseAfterCancellation(t *testing.T) {
 	t.Setenv("INHERITED_TEST_KEY", "synthetic-inherited-runtime-secret")
+	t.Setenv("OPERATOR_BACKEND_KEY", "synthetic-operator-backend-secret")
 	entered := make(chan struct{}, 3)
 	release := make(chan struct{})
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
@@ -51,6 +52,16 @@ func TestRolesShareBackendCapacityAndReleaseAfterCancellation(t *testing.T) {
 			t.Fatal(err)
 		}
 	}
+	operatorBackend := `backends:
+  shared:
+    endpoint: https://operator.invalid/v1
+    concurrency_limit: 77
+    queue_capacity: 88
+    api_key_env: OPERATOR_BACKEND_KEY
+`
+	if err := os.WriteFile(filepath.Join(dir, "profiles", "backend-tuning.yaml"), []byte(operatorBackend), 0600); err != nil {
+		t.Fatal(err)
+	}
 	loaded, err := config.Load(ck.File(main), "")
 	if err != nil {
 		t.Fatal(err)