Usa screenshot di pagina come sfondo heatmap al posto dell’iframe.

Cattura periodica client-side (con consenso), storage ActiveStorage e overlay allineato all’immagine.

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

backend/app/models/analytics_page_snapshot.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class AnalyticsPageSnapshot < ApplicationRecord
+  self.table_name = "analytics_page_snapshots"
+
+  has_one_attached :image
+
+  validates :page_path, presence: true
+  validates :device, inclusion: { in: AnalyticsEvent::DEVICES }
+  validates :width, :height, numericality: { greater_than: 0 }
+  validates :captured_at, presence: true
+end