fix(test): e2e suite silently skips every test

Author: ekam-walia

go/core/test/e2e/interaction_test.go

@@ -394,7 +394,14 @@ func interactionTarget(t *testing.T) string {
 		target = os.Getenv("KAGENT_GRPC_URL")
 	}
 	if target == "" {
-		t.Skip("KAGENT_E2E_GRPC_TARGET is not set")
+		t.Fatalf("KAGENT_E2E_GRPC_TARGET or KAGENT_GRPC_URL must be set to run e2e tests.\n" +
+			"To run e2e tests locally:\n" +
+			"  1. Create a Kind cluster: make create-kind-cluster\n" +
+			"  2. Install Substrate and Kagent (see CI workflow in .github/workflows/ci.yaml)\n" +
+			"  3. Set the gRPC target:\n" +
+			"     export KAGENT_E2E_GRPC_TARGET=<controller-address>:8084\n" +
+			"  4. Run tests: go test -v ./core/test/e2e/...\n" +
+			"See go/core/test/e2e/README.md for full instructions.")
 	}
 	return target
 }

go/core/test/e2e/lifecycle_test.go

@@ -25,7 +25,14 @@ func TestAgentInstanceLifecycle(t *testing.T) {
 		target = os.Getenv("KAGENT_GRPC_URL")
 	}
 	if target == "" {
-		t.Skip("KAGENT_E2E_GRPC_TARGET is not set")
+		t.Fatalf("KAGENT_E2E_GRPC_TARGET or KAGENT_GRPC_URL must be set to run e2e tests.\n" +
+			"To run e2e tests locally:\n" +
+			"  1. Create a Kind cluster: make create-kind-cluster\n" +
+			"  2. Install Substrate and Kagent (see CI workflow in .github/workflows/ci.yaml)\n" +
+			"  3. Set the gRPC target:\n" +
+			"     export KAGENT_E2E_GRPC_TARGET=<controller-address>:8084\n" +
+			"  4. Run tests: go test -v ./core/test/e2e/...\n" +
+			"See go/core/test/e2e/README.md for full instructions.")
 	}
 
 	conn, err := grpc.NewClient(target, grpc.WithTransportCredentials(insecure.NewCredentials()))