Commit iniziale di eminuxCRM: CRM Rails con pipeline, campagne email e Docker.

Include autenticazione, progetti isolati, mail marketing HTML con SMTP, test A/B e editor WYSIWYG.

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

app/controllers/admin_controller.rb

@@ -0,0 +1,11 @@
+class AdminController < ApplicationController
+  before_action :require_admin
+
+  def show
+    @page_title = "Impostazioni"
+    @users_count = User.count
+    @active_users_count = User.active.count
+    @projects_count = Project.count
+    @mail_identities_count = MailIdentity.count
+  end
+end