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/routes.rb

@@ -76,6 +76,8 @@ Rails.application.routes.draw do
 
   post "internal/validate_publish", to: "webhooks/mediamtx#validate_publish"
 
+  post "analytics/events", to: "analytics/events#create"
+
   namespace :admin do
     get "login", to: "auth#new", as: :login
     post "login", to: "auth#create"
@@ -127,6 +129,8 @@ Rails.application.routes.draw do
         delete :clear_kill_switch
       end
     end
+    get "analytics", to: "analytics#index", as: :analytics
+    get "analytics/page", to: "analytics#show", as: :analytics_page
     get "youtube/platform", to: "youtube#platform", as: :youtube_platform
   end