feat(api): Implement EventManager error logging and add coverage (#29204)

- Ensure `EventManager._notify_layers` logs exceptions instead of silently swallowing them 
  so GraphEngine layer failures surface for debugging
- Introduce unit tests to assert the logger captures the runtime error when collecting events
- Enable the `S110` lint rule to catch `try-except-pass` patterns
- Add proper error logging for existing `try-except-pass` blocks.

api/tests/unit_tests/core/workflow/graph_engine/event_management/test_event_manager.py

@@ -0,0 +1,39 @@
+"""Tests for the EventManager."""
+
+from __future__ import annotations
+
+import logging
+
+from core.workflow.graph_engine.event_management.event_manager import EventManager
+from core.workflow.graph_engine.layers.base import GraphEngineLayer
+from core.workflow.graph_events import GraphEngineEvent
+
+
+class _FaultyLayer(GraphEngineLayer):
+    """Layer that raises from on_event to test error handling."""
+
+    def on_graph_start(self) -> None:  # pragma: no cover - not used in tests
+        pass
+
+    def on_event(self, event: GraphEngineEvent) -> None:
+        raise RuntimeError("boom")
+
+    def on_graph_end(self, error: Exception | None) -> None:  # pragma: no cover - not used in tests
+        pass
+
+
+def test_event_manager_logs_layer_errors(caplog) -> None:
+    """Ensure errors raised by layers are logged when collecting events."""
+
+    event_manager = EventManager()
+    event_manager.set_layers([_FaultyLayer()])
+
+    with caplog.at_level(logging.ERROR):
+        event_manager.collect(GraphEngineEvent())
+
+    error_logs = [record for record in caplog.records if "Error in layer on_event" in record.getMessage()]
+    assert error_logs, "Expected layer errors to be logged"
+
+    log_record = error_logs[0]
+    assert log_record.exc_info is not None
+    assert isinstance(log_record.exc_info[1], RuntimeError)