chore: add REUSE 3.3 compliance

Author: arcangelo7

.github/workflows/build-android.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 Arcangelo Massari <info@arcangelomassari.com>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 name: Build Android
 
 on:

.github/workflows/build-flatpak.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 Arcangelo Massari <info@arcangelomassari.com>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 name: Build Flatpak
 
 on:

.github/workflows/build-snap.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 Arcangelo Massari <info@arcangelomassari.com>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 name: Build Snap
 
 on:

.github/workflows/build-windows.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 Arcangelo Massari <info@arcangelomassari.com>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 name: Build Windows
 
 on:

.github/workflows/publish-android.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 Arcangelo Massari <info@arcangelomassari.com>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 name: Publish Android
 
 on:

.github/workflows/publish-snap.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 Arcangelo Massari <info@arcangelomassari.com>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 name: Publish Snap
 
 on:

.github/workflows/publish-windows.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 Arcangelo Massari <info@arcangelomassari.com>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 name: Publish Windows
 
 on:

.github/workflows/reuse.yml

@@ -0,0 +1,19 @@
+# SPDX-FileCopyrightText: 2026 Arcangelo Massari <info@arcangelomassari.com>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+name: REUSE compliance
+
+on:
+  push:
+    branches:
+      - "**"
+  pull_request:
+    branches: [main]
+
+jobs:
+  reuse:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: fsfe/reuse-action@v6

.github/workflows/update-flathub.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 Arcangelo Massari <info@arcangelomassari.com>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 name: Update Flathub
 
 on:

.github/workflows/verify-android.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 Arcangelo Massari <info@arcangelomassari.com>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 name: Verify Android
 
 on: