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/db/migrate/20260820200000_create_analytics_tables.rb

@@ -0,0 +1,47 @@
+# frozen_string_literal: true
+
+class CreateAnalyticsTables < ActiveRecord::Migration[7.2]
+  def change
+    create_table :analytics_events, id: :uuid, default: -> { "gen_random_uuid()" } do |t|
+      t.string :page_path, null: false
+      t.string :device, null: false
+      t.string :event_type, null: false
+      t.decimal :x_pct, precision: 6, scale: 2
+      t.decimal :y_pct, precision: 6, scale: 2
+      t.decimal :scroll_pct, precision: 6, scale: 2
+      t.datetime :occurred_at, null: false
+      t.timestamps
+    end
+    add_index :analytics_events, :occurred_at
+    add_index :analytics_events, %i[event_type occurred_at]
+
+    create_table :analytics_page_cells, id: :uuid, default: -> { "gen_random_uuid()" } do |t|
+      t.date :day, null: false
+      t.string :page_path, null: false
+      t.string :device, null: false
+      t.integer :cell_x, null: false
+      t.integer :cell_y, null: false
+      t.integer :click_count, null: false, default: 0
+      t.timestamps
+    end
+    add_index :analytics_page_cells,
+              %i[day page_path device cell_x cell_y],
+              unique: true,
+              name: "index_analytics_page_cells_unique"
+
+    create_table :analytics_page_stats, id: :uuid, default: -> { "gen_random_uuid()" } do |t|
+      t.date :day, null: false
+      t.string :page_path, null: false
+      t.string :device, null: false
+      t.integer :pageview_count, null: false, default: 0
+      t.integer :scroll_samples, null: false, default: 0
+      t.integer :scroll_sum_pct, null: false, default: 0
+      t.integer :max_scroll_pct, null: false, default: 0
+      t.timestamps
+    end
+    add_index :analytics_page_stats,
+              %i[day page_path device],
+              unique: true,
+              name: "index_analytics_page_stats_unique"
+  end
+end

backend/db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.2].define(version: 2026_08_20_191000) do
+ActiveRecord::Schema[7.2].define(version: 2026_08_20_200000) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pgcrypto"
   enable_extension "plpgsql"
@@ -51,6 +51,45 @@ ActiveRecord::Schema[7.2].define(version: 2026_08_20_191000) do
     t.index ["username"], name: "index_admin_accounts_on_username", unique: true
   end
 
+  create_table "analytics_events", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
+    t.string "page_path", null: false
+    t.string "device", null: false
+    t.string "event_type", null: false
+    t.decimal "x_pct", precision: 6, scale: 2
+    t.decimal "y_pct", precision: 6, scale: 2
+    t.decimal "scroll_pct", precision: 6, scale: 2
+    t.datetime "occurred_at", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["event_type", "occurred_at"], name: "index_analytics_events_on_event_type_and_occurred_at"
+    t.index ["occurred_at"], name: "index_analytics_events_on_occurred_at"
+  end
+
+  create_table "analytics_page_cells", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
+    t.date "day", null: false
+    t.string "page_path", null: false
+    t.string "device", null: false
+    t.integer "cell_x", null: false
+    t.integer "cell_y", null: false
+    t.integer "click_count", default: 0, null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["day", "page_path", "device", "cell_x", "cell_y"], name: "index_analytics_page_cells_unique", unique: true
+  end
+
+  create_table "analytics_page_stats", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
+    t.date "day", null: false
+    t.string "page_path", null: false
+    t.string "device", null: false
+    t.integer "pageview_count", default: 0, null: false
+    t.integer "scroll_samples", default: 0, null: false
+    t.integer "scroll_sum_pct", default: 0, null: false
+    t.integer "max_scroll_pct", default: 0, null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["day", "page_path", "device"], name: "index_analytics_page_stats_unique", unique: true
+  end
+
   create_table "app_announcements", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
     t.string "kind", default: "info", null: false
     t.string "severity", default: "info", null: false