🎉 feat(ci): aggiungi pipeline Capacitor Android riutilizzabile

- Nuovo workflow capacitor-android.yml con build debug e release
- Input configurabili: runner, node-version, java-version, build-type, output-format
- Supporto APK (sideload/test) e AAB (Play Store) via output-format
- Firma release tramite keystore in base64 (secret)
- Setup google-services.json opzionale per Firebase
- Cache npm + Gradle per performance
- Upload artifact automatico (retention 14 giorni)
- Esempi consumer: ci.yml, release.yml, maintenance.yml

examples/capacitor/maintenance.yml

@@ -0,0 +1,25 @@
+# Copia in: .gitea/workflows/maintenance.yml
+# Trigger:
+#   - PR merged → cleanup branch sorgente
+#   - Ogni lunedì 08:00 → controllo dipendenze vulnerabili/obsolete
+#   - Manuale → workflow_dispatch
+
+name: Maintenance
+
+on:
+  pull_request:
+    types: [closed]
+  schedule:
+    - cron: '0 8 * * 1'
+  workflow_dispatch:
+
+jobs:
+  branch-cleanup:
+    if: gitea.event_name == 'pull_request' && gitea.event.pull_request.merged == true
+    uses: https://gitea.com/Punga78/shared-actions/.gitea/workflows/branch-cleanup.yml@main
+    secrets: inherit
+
+  dependency-check:
+    if: gitea.event_name == 'schedule' || gitea.event_name == 'workflow_dispatch'
+    uses: https://gitea.com/Punga78/shared-actions/.gitea/workflows/dependency-check.yml@main
+    secrets: inherit