feat(k6): add TestRun CRD reference template (#4)

k6/testrun.yaml

@@ -0,0 +1,36 @@
+# FALLBACK k6 TestRun CRD — reference template for load testing online-boutique.
+# This static skeleton is only used when The Watcher agent fails to generate
+# a bespoke k6 script. When generation succeeds, the agent produces a custom
+# TestRun CRD that replaces this file in the scaffolded output repository.
+#
+# TestRun CRDs are committed to the repo as a reference. They are created
+# dynamically from Backstage (not auto-synced by ArgoCD) because they are
+# ephemeral one-shot resources.
+apiVersion: k6.io/v1alpha1
+kind: TestRun
+metadata:
+  name: k6-online-boutique
+  namespace: demo-apps
+  labels:
+    app: online-boutique
+    backstage.io/component: online-boutique
+    app.kubernetes.io/managed-by: backstage
+    app.kubernetes.io/component: load-testing
+spec:
+  parallelism: 1
+  script:
+    configMap:
+      name: k6-test-online-boutique
+      file: load-test.js
+  runner:
+    image: grafana/k6:latest
+    envFrom:
+      - configMapRef:
+          name: k6-test-online-boutique
+    env:
+      - name: K6_OTEL_SERVICE_NAME
+        value: k6-online-boutique
+      - name: TEST_VUS
+        value: "10"
+      - name: TEST_DURATION
+        value: "30s"