Admin analytics: heatmap per device, anteprima staff e analisi costi.

Separa heatmap mobile/desktop, opt-out analytics per operatori, dashboard costi con KPI e trend mensili.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/public/site-analytics.js

@@ -29,6 +29,11 @@
     return false;
   }
 
+  function isAnalyticsSuppressed() {
+    var meta = document.querySelector("meta[name='mltv-analytics-suppress']");
+    return meta && meta.getAttribute("content") === "1";
+  }
+
   function hasAnalyticsConsent() {
     try {
       var raw = localStorage.getItem(STORAGE_KEY);
@@ -104,7 +109,7 @@
 
   function flush(useBeacon) {
     flushMovesIntoQueue();
-    if (!queue.length || !hasAnalyticsConsent()) {
+    if (!queue.length || !hasAnalyticsConsent() || isAnalyticsSuppressed()) {
       queue = [];
       return;
     }
@@ -236,7 +241,7 @@
   }
 
   function captureSnapshot() {
-    if (!hasAnalyticsConsent() || alreadyCapturedToday()) return;
+    if (!hasAnalyticsConsent() || isAnalyticsSuppressed() || alreadyCapturedToday()) return;
     loadHtml2Canvas(function (html2canvas) {
       var size = pageSize();
       html2canvas(document.documentElement, {
@@ -281,6 +286,7 @@
   function start() {
     if (started) return;
     if (excludedPath(location.pathname)) return;
+    if (isAnalyticsSuppressed()) return;
     if (!hasAnalyticsConsent()) return;
     started = true;
     maxScroll = scrollPct();