feat(eventstore): increase parallel write capabilities (#5940)

This implementation increases parallel write capabilities of the eventstore.
Please have a look at the technical advisories: [05](https://zitadel.com/docs/support/advisory/a10005) and  [06](https://zitadel.com/docs/support/advisory/a10006).
The implementation of eventstore.push is rewritten and stored events are migrated to a new table `eventstore.events2`.
If you are using cockroach: make sure that the database user of ZITADEL has `VIEWACTIVITY` grant. This is used to query events.

internal/query/event.go

@@ -11,7 +11,7 @@ import (
 
 type Event struct {
 	Editor       *EventEditor
-	Aggregate    eventstore.Aggregate
+	Aggregate    *eventstore.Aggregate
 	Sequence     uint64
 	CreationDate time.Time
 	Type         string
@@ -48,7 +48,7 @@ func filterAuditLogRetention(ctx context.Context, events []eventstore.Event, aud
 	}
 	filteredEvents := make([]eventstore.Event, 0, len(events))
 	for _, event := range events {
-		if event.CreationDate().After(callTime.Add(-auditLogRetention)) {
+		if event.CreatedAt().After(callTime.Add(-auditLogRetention)) {
 			filteredEvents = append(filteredEvents, event)
 		}
 	}
@@ -77,23 +77,23 @@ func (q *Queries) convertEvent(ctx context.Context, event eventstore.Event, user
 	var err error
 	defer func() { span.EndWithError(err) }()
 
-	editor, ok := users[event.EditorUser()]
+	editor, ok := users[event.Creator()]
 	if !ok {
-		editor = q.editorUserByID(ctx, event.EditorUser())
-		users[event.EditorUser()] = editor
+		editor = q.editorUserByID(ctx, event.Creator())
+		users[event.Creator()] = editor
 	}
 
 	return &Event{
 		Editor: &EventEditor{
-			ID:                event.EditorUser(),
-			Service:           event.EditorService(),
+			ID:                event.Creator(),
+			Service:           "zitadel",
 			DisplayName:       editor.DisplayName,
 			PreferedLoginName: editor.PreferedLoginName,
 			AvatarKey:         editor.AvatarKey,
 		},
 		Aggregate:    event.Aggregate(),
 		Sequence:     event.Sequence(),
-		CreationDate: event.CreationDate(),
+		CreationDate: event.CreatedAt(),
 		Type:         string(event.Type()),
 		Payload:      event.DataAsBytes(),
 	}