Add missing license headers

src/cursors.ts

@@ -1,3 +1,11 @@
+/*!
+ * Copyright (c) 2025-present, Vanilagy and contributors
+ *
+ * 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/.
+ */
+
 import { PCM_AUDIO_CODECS } from './codec';
 import { AudioDecoderWrapper, DecoderWrapper, PcmAudioDecoderWrapper, VideoDecoderWrapper } from './decode';
 import { InputDisposedError } from './input';

src/decode.ts

@@ -1,3 +1,11 @@
+/*!
+ * Copyright (c) 2025-present, Vanilagy and contributors
+ *
+ * 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/.
+ */
+
 import { AudioCodec, parsePcmCodec, PCM_AUDIO_CODECS, PcmAudioCodec, VideoCodec } from './codec';
 import {
 	deserializeAvcDecoderConfigurationRecord,