Aggiunge filtri avanzati per i destinatari delle campagne email.

La scelta della lista passa da un wizard a tre passi, con anteprima del conteggio e lista congelata solo dopo la conferma.

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

app/services/mailings/recipient_builder.rb

@@ -36,19 +36,9 @@ class Mailings::RecipientBuilder
   end
 
   def scope
-    orgs = Organization.for_project(@mailing.project).includes(:contacts, :opportunities)
-    org_ids =
-      case @mailing.audience
-      when "to_send"
-        Opportunity.where(project_id: @mailing.project_id, send_status: "to_send").select(:organization_id)
-      when "test_a"
-        Opportunity.where(project_id: @mailing.project_id, ab_variant: "A").select(:organization_id)
-      when "test_b"
-        Opportunity.where(project_id: @mailing.project_id, ab_variant: "B").select(:organization_id)
-      else
-        orgs.select(:id)
-      end
-    orgs.where(id: org_ids)
+    Mailings::AudienceQuery.new(@mailing.project, @mailing.parsed_audience_filters, mailing: @mailing)
+      .relation
+      .includes(:contacts, :opportunities)
   end
 
   def assign_variant!(attrs, org, split_index)