SIENTIAPDE-1646

SIENTIAPDE-1646 Enhance OPC integration and E2E testing framework

- Updated .gitignore to exclude '.cursor/*' for better file management.
- Added new marker in pyproject.toml for E2E tests using OPC.
- Introduced async OPC server fixtures and improved connection handling in conftest.py.
- Enhanced error handling in OPC activities and added metrics for session management in metrics.py.
- Updated E2E tests to cover new OPC scenarios, including session errors and reconnect handling.
- Refactored helper functions to improve prediction assertion logic in helpers.py.
- Documented new OPC scenarios in scenarios.md for clarity on expected outcomes.

e2e/helpers.py

@@ -205,6 +205,7 @@ def assert_prediction(
     prediction_confidence: int | Decimal = 0,
     prediction_status: str = 'Good',
     comments: str = '',
+    comments_contains: str | None = None,
 ) -> None:
     """
     Assert exactly one prediction row exists for model_id with expected columns.
@@ -215,10 +216,9 @@ def assert_prediction(
         prediction: Expected prediction value.
         prediction_confidence: Expected confidence (int or Decimal for numeric column).
         prediction_status: Expected status string.
-        comments: Expected comments string.
+        comments: Expected exact comments string (ignored when ``comments_contains`` is set).
+        comments_contains: When set, assert this substring appears in comments.
     """
-    import pytest
-
     with postgres_engine.connect() as conn:
         result_query = conn.execute(
             text(
@@ -238,7 +238,13 @@ def assert_prediction(
             str(prediction_confidence)
         ), f'Expected prediction_confidence={prediction_confidence}, got {row[2]}'
         assert row[3] == prediction_status, f"Expected prediction_status='{prediction_status}', got {row[3]}"
-        assert row[4] == comments, f"Expected comments='{comments}', got {row[4]}"
+        actual_comments = row[4] or ''
+        if comments_contains is not None:
+            assert comments_contains in actual_comments, (
+                f"Expected comments to contain '{comments_contains}', got '{actual_comments}'"
+            )
+        else:
+            assert actual_comments == comments, f"Expected comments='{comments}', got '{actual_comments}'"
 
 
 def assert_continue(