SIENTIAPDE-1712

Add unique constraint on (model_id, timestamp, variable) in schema and implement idempotent export test to ensure no duplicates are created. Update CoreScouter and related tests to handle conflict resolution by ignoring duplicates.

e2e/conftest.py

@@ -32,6 +32,7 @@ E2E_DATABASE = 'scouter_e2e_test'
 E2E_NOTIFICATION_COLLECTION = 'notification_queue'
 DB_SCHEMA_PATH = Path(__file__).resolve().parent / 'db_schema.sql'
 
+
 def _activity_list(activities: Activities) -> list:
     """Return bound activity callables for the E2E worker."""
     return [
@@ -264,7 +265,8 @@ def test_activities(
     Return:
         Live Activities instance (no unittest.mock.patch)
     """
-    pg_parts = postgres_connection_parts(postgres_container.get_connection_url())
+    pg_parts = postgres_connection_parts(
+        postgres_container.get_connection_url())
     redis_host = redis_container.get_container_host_ip()
     redis_port = int(redis_container.get_exposed_port(6379))
 
@@ -309,11 +311,14 @@ async def temporal_worker(temporal_env, test_activities):
         task_queue=SCOUTER_TASK_QUEUE,
         workflows=[Scouter, PIWebAPIScouter, CoreScouter],
         activities=_activity_list(test_activities),
-        activity_executor=ThreadPoolExecutor(max_workers=50, thread_name_prefix='e2e-activity'),
+        activity_executor=ThreadPoolExecutor(
+            max_workers=50, thread_name_prefix='e2e-activity'),
         max_concurrent_workflow_tasks=50,
         max_concurrent_activities=50,
         max_concurrent_local_activities=50,
-        workflow_task_poller_behavior=PollerBehaviorAutoscaling(minimum=1, initial=2, maximum=10),
-        activity_task_poller_behavior=PollerBehaviorAutoscaling(minimum=1, initial=2, maximum=10),
+        workflow_task_poller_behavior=PollerBehaviorAutoscaling(
+            minimum=1, initial=2, maximum=10),
+        activity_task_poller_behavior=PollerBehaviorAutoscaling(
+            minimum=1, initial=2, maximum=10),
     ) as worker:
         yield worker