feat(session/exporter): add event ID generation logic

agentops/session/exporter.py

@@ -120,9 +120,14 @@ def from_span_attributes(attrs: Union[Dict[str, AttributeValue], Mapping[str, At
         init_timestamp = attrs.get("event.timestamp") or event_data.get("init_timestamp", current_time)
         end_timestamp = attrs.get("event.end_timestamp") or event_data.get("end_timestamp", current_time)
 
+        # Get event ID - ensure it's a valid UUID string
+        event_id = event_data.get("id")
+        if not event_id:
+            event_id = str(uuid4())
+
         # Build base event structure
         base_kwargs = {
-            "id": attrs.get("event.id", str(uuid4())),
+            "id": event_id,  # Use string ID directly
             "event_type": attrs.get("event.type", event_data.get("event_type", "unknown")),
             "init_timestamp": init_timestamp,
             "end_timestamp": end_timestamp,