assets: adds license notices to all files

assets/templates/repo/tickets.html

@@ -1,5 +1,26 @@
 {% extends "base.html" %}
 
+{#
+	Copyright (c) 2025 Sasha Koshka <sashakoshka@tebibyte.media>
+	SPDX-License-Identifier: AGPL-3.0-or-later
+
+	This file is part of Mintee.
+
+	Mintee is free software: you can redistribute it and/or modify it under the
+	terms of the GNU Affero General Public License as published by the Free
+	Software Foundation, either version 3 of the License, or (at your option)
+	any later version.
+
+	Mintee is distributed in the hope that it will be useful, but WITHOUT ANY
+	WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+	FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
+	more details.
+
+	You should have received a copy of the GNU Affero General Public License
+	along with Mintee. If not, see https://www.gnu.org/licenses/.
+#}
+
+
 {% block page %}tickets{% endblock page %}
 
 {% block content %}