[FEAT] UI: guida online, landing EN, mobile-conversion, ai-assistant, bug-reporter + help/i18n

- public/guida.html, index-en.html, service-continuity.html
- public/js/ai-assistant.js, bug-reporter.js (FAB supporto)
- public/mobile-conversion.css/js
- index.html, common.js, help.js, risks.html: aggiornamenti UI/help

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

public/js/help.js

@@ -904,6 +904,22 @@ const HelpSystem = (function () {
 
     // ── Rendering del contenuto HTML di help ─────────────────────────
 
+    // Mapping pageId -> ancora capitolo nella Guida completa (guida.html)
+    var _guideAnchor = {
+        'dashboard':    'cap-4',
+        'assessment':   'cap-5',
+        'risks':        'cap-6',
+        'incidents':    'cap-7',
+        'policies':     'cap-8',
+        'supply-chain': 'cap-9',
+        'training':     'cap-10',
+        'assets':       'cap-11',
+        'reports':      'cap-12',
+        'feedback':     'cap-13',
+        'workflow':     'cap-4',
+        'settings':     'cap-3'
+    };
+
     function _renderHelpContent(pageId) {
         var data = _helpContent[pageId];
         if (!data) return null;
@@ -936,6 +952,15 @@ const HelpSystem = (function () {
             html += '</div>';
         }
 
+        // Link alla guida completa (per utenti che vogliono approfondire)
+        var anchor = _guideAnchor[pageId] || '';
+        var guideHref = 'guida.html' + (anchor ? '#' + anchor : '');
+        html += '<div style="margin-top:20px;padding:14px 18px;background:#eff6ff;border-left:4px solid #1e40af;border-radius:6px;">';
+        html += '<strong style="color:#1e40af;">Sei nuovo?</strong> ';
+        html += 'Apri la <a href="' + guideHref + '" style="color:#1e40af;font-weight:600;">Guida all\'uso completa</a> ';
+        html += 'con spiegazioni in parole semplici, esempi pratici e cosa dice la norma.';
+        html += '</div>';
+
         html += '</div>';
 
         return { title: data.title, content: html };