chore: licensing header

Author: pixelspark

SushitrainCore/src/photofs.go

@@ -1,3 +1,8 @@
+// Copyright (C) 2025 Tommy van der Vorst
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at https://mozilla.org/MPL/2.0/.
 package sushitrain
 
 import (