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/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_28_124000) do
+ActiveRecord::Schema[7.2].define(version: 2026_08_28_180000) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pgcrypto"
   enable_extension "plpgsql"
@@ -313,6 +313,17 @@ ActiveRecord::Schema[7.2].define(version: 2026_08_28_124000) do
     t.index ["slug"], name: "index_plans_on_slug", unique: true
   end
 
+  create_table "platform_cost_entries", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
+    t.date "month", null: false
+    t.string "label", default: "Piattaforma produzione", null: false
+    t.integer "amount_cents", null: false
+    t.text "notes"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["month", "label"], name: "index_platform_cost_entries_on_month_and_label"
+    t.index ["month"], name: "index_platform_cost_entries_on_month"
+  end
+
   create_table "recordings", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
     t.uuid "stream_session_id", null: false
     t.uuid "team_id", null: false