Billing: fatture manuali, profilo obbligatorio e piani Stripe mensile/annuale.

Rimuove link al portale Stripe in area cliente, aggiunge flusso admin per PDF
fattura e email, blocca checkout senza dati di fatturazione, allinea prezzi
a €4,90/€39,90 e €9,90/€69,90, locale italiano e documentazione deploy.

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

backend/config/initializers/i18n.rb

@@ -0,0 +1,5 @@
+# Sito in italiano: locale fissa per ogni richiesta web (evita date tipo "July 02, 2026").
+Rails.application.config.after_initialize do
+  I18n.available_locales = %i[it en]
+  I18n.default_locale = :it
+end

backend/config/initializers/match_live_tv.rb

@@ -40,12 +40,33 @@ module MatchLiveTv
       ENV["STRIPE_WEBHOOK_SECRET"].presence
     end
 
+    def stripe_premium_light_yearly_price_id
+      ENV["STRIPE_PREMIUM_LIGHT_YEARLY_PRICE_ID"].presence ||
+        ENV["STRIPE_PREMIUM_LIGHT_PRICE_ID"].presence ||
+        ENV["STRIPE_PREMIUM_PRICE_ID"].presence
+    end
+
+    def stripe_premium_light_monthly_price_id
+      ENV["STRIPE_PREMIUM_LIGHT_MONTHLY_PRICE_ID"].presence
+    end
+
+    def stripe_premium_full_yearly_price_id
+      ENV["STRIPE_PREMIUM_FULL_YEARLY_PRICE_ID"].presence ||
+        ENV["STRIPE_PREMIUM_FULL_PRICE_ID"].presence ||
+        ENV["STRIPE_PREMIUM_PRICE_ID"].presence
+    end
+
+    def stripe_premium_full_monthly_price_id
+      ENV["STRIPE_PREMIUM_FULL_MONTHLY_PRICE_ID"].presence
+    end
+
+    # Retrocompatibilità
     def stripe_premium_light_price_id
-      ENV.fetch("STRIPE_PREMIUM_LIGHT_PRICE_ID", ENV.fetch("STRIPE_PREMIUM_PRICE_ID", ""))
+      stripe_premium_light_yearly_price_id.to_s
     end
 
     def stripe_premium_full_price_id
-      ENV.fetch("STRIPE_PREMIUM_FULL_PRICE_ID", ENV.fetch("STRIPE_PREMIUM_PRICE_ID", ""))
+      stripe_premium_full_yearly_price_id.to_s
     end
 
     def stripe_enabled?