🎉 feat(ci): aggiungi versionamento semantico per shared-actions

- Aggiunto package.json con versione 1.0.0
- Nuovo workflow release.yml standalone: crea release Gitea su tag v*
- Aggiornamento automatico tag major floating (v1 → latest v1.x.x)
- Esempi aggiornati da @main a @v1 (tag major stabile)

Flusso di release:
  git tag v1.0.0 && git push origin v1.0.0
  → crea release Gitea con changelog
  → aggiorna tag floating v1

examples/libreria-npm/maintenance.yml

@@ -13,10 +13,10 @@ on:
 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
+    uses: https://gitea.com/Punga78/shared-actions/.gitea/workflows/branch-cleanup.yml@v1
     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
+    uses: https://gitea.com/Punga78/shared-actions/.gitea/workflows/dependency-check.yml@v1
     secrets: inherit