[FIX] ri-review guida: 2 fix guida + 2 fix prodotto UI orfane

cap-5: sei->quattro modalita + chiosa adeguatezza-ruolo sotto GV.RR-04 (non GV.PO-01)
cap-7: nomi bottoni allineati alla UI (Invia Report Finale 30gg)
assets.html: bottone Importa (openImportModal era orfana)
reports.html: tab Requisiti ACN (loadAcnRequirements -> endpoint esistente, 87/116 per entity_type)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

public/assets.html

@@ -264,6 +264,7 @@
                 <h2 data-i18n="assets.title">Inventario Asset</h2>
                 <div class="content-header-actions">
                     <span class="text-muted" style="font-size:0.8rem; margin-right:8px;">Art. 21.2.i NIS2</span>
+                    <button class="btn btn-secondary" onclick="openImportModal()" title="Importa asset da CSV/CMDB">Importa</button>
                     <button class="btn btn-primary" onclick="showCreateAssetModal()">+ Nuovo Asset</button>
                 </div>
             </header>