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/pipeline_controller.rb

@@ -0,0 +1,12 @@
+class PipelineController < ApplicationController
+  before_action :require_current_project!
+
+  def show
+    @page_title = "Pipeline"
+    @opportunities_by_stage = Catalog::PIPELINE_ORDER.index_with do |stage|
+      opportunities_for_current_project.where(pipeline_stage: stage)
+                 .includes(:organization, :assigned_user, :tasks, organization: :contacts)
+                 .order(updated_at: :desc)
+    end
+  end
+end