test(e2e): one simple_metrics schedule per window for the same model (SIENTIAPDE-2193)

e2e/scenarios.md

@@ -45,6 +45,11 @@ unrelated Temporal schedule present.
 
 First run creates TTL index on notification collection used by scouter pipelines.
 
+### 1.7.1 Simple metrics parallel windows
+
+Two `simple_metrics` pipelines for the same `model_id` (60 min and 1440 min windows) → one
+Temporal schedule per window, each with its own `frequency` as interval.
+
 ---
 
 ## 2. Alerts workflow