fix: cleanup some todos (#3642)

* cleanup todo

* fix: some todos

internal/eventstore/handler/crdb/init.go

@@ -344,7 +344,7 @@ func columnType(columnType ColumnType) string {
 	case ColumnTypeBytes:
 		return "BYTES"
 	default:
-		panic("") //TODO: remove?
+		panic("unknown column type")
 		return ""
 	}
 }