Aggiunge heatmaps first-party (click/scroll) con pagina admin Analytics.

Raccoglie eventi aggregati dietro consenso cookie, senza PII né tracking su admin/regia/live/replay; GA4 resta invariato.

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

backend/config/locales/admin.en.yml

@@ -10,6 +10,7 @@ en:
         billing: Billing
         youtube: YouTube
         sessions: Sessions
+        analytics: Analytics
         stream_nodes: Stream nodes
         password: Password
         logout: Log out
@@ -350,6 +351,35 @@ en:
           lab: Lab
           cloud: Hetzner
 
+    analytics:
+      missing_path: Select a page.
+      filters:
+        from: From
+        to: To
+        device: Device
+        any: All
+        apply: Filter
+        reset: Reset
+      index:
+        title: Site analytics
+        lead: Aggregated first-party heatmaps and scroll depth, only with analytics consent. No personal data.
+        none: No data in the selected period.
+        heatmap: Heatmap
+        table:
+          path: Page
+          pageviews: Pageviews
+          clicks: Clicks
+          avg_scroll: Avg scroll
+          max_scroll: Max scroll
+      show:
+        title: Page heatmap
+        back: "← Back to Analytics"
+        summary: Summary
+        scroll_depth: Scroll depth
+        scroll_hint: "Average %{avg}% · max %{max}%"
+        heatmap_title: Click map
+        no_clicks: No aggregated clicks for this page in the period.
+
     billing:
       index:
         title: Payments to invoice