Aggiunge pagamento con bonifico e importo concordato per società.

Il piano si attiva solo dopo la conferma admin; Stripe resta a listino se non c'è un prezzo commerciale.

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

backend/app/services/billing/issue_invoice.rb

@@ -2,13 +2,17 @@ module Billing
   class IssueInvoice
     class Error < StandardError; end
 
-    def self.call(invoice:, pdf: nil)
-      new(invoice: invoice, pdf: pdf).call
+    MAILER_ACTIONS = %i[invoice_pdf plan_activated_with_invoice].freeze
+
+    def self.call(invoice:, pdf: nil, mailer_action: :invoice_pdf)
+      new(invoice: invoice, pdf: pdf, mailer_action: mailer_action).call
     end
 
-    def initialize(invoice:, pdf: nil)
+    def initialize(invoice:, pdf: nil, mailer_action: :invoice_pdf)
       @invoice = invoice
       @pdf = pdf
+      @mailer_action = mailer_action.to_sym
+      raise Error, "Azione email non valida" unless MAILER_ACTIONS.include?(@mailer_action)
     end
 
     def call
@@ -22,7 +26,7 @@ module Billing
 
       @invoice.update!(status: "issued")
 
-      Billing::InvoiceMailer.with(invoice: @invoice).invoice_pdf.deliver_now
+      Billing::InvoiceMailer.with(invoice: @invoice).public_send(@mailer_action).deliver_now
       @invoice.update!(status: "sent", emailed_at: Time.current)
 
       @invoice