refactor(v2): init events (#7823)

creates events structures for initial projections and read models

internal/v2/user/user_removed.go

@@ -0,0 +1,27 @@
+package user
+
+import (
+	"github.com/zitadel/zitadel/internal/v2/eventstore"
+	"github.com/zitadel/zitadel/internal/zerrors"
+)
+
+type RemovedEvent eventstore.Event[eventstore.EmptyPayload]
+
+const RemovedType = AggregateType + ".removed"
+
+var _ eventstore.TypeChecker = (*RemovedEvent)(nil)
+
+// ActionType implements eventstore.Typer.
+func (c *RemovedEvent) ActionType() string {
+	return RemovedType
+}
+
+func RemovedEventFromStorage(event *eventstore.StorageEvent) (e *RemovedEvent, _ error) {
+	if event.Type != e.ActionType() {
+		return nil, zerrors.ThrowInvalidArgument(nil, "USER-UN6Xa", "Errors.Invalid.Event.Type")
+	}
+
+	return &RemovedEvent{
+		StorageEvent: event,
+	}, nil
+}