Initial commit: Add logistics and order_detail message types

- Add Logistics component with progress tracking
- Add OrderDetail component for order information
- Support data-driven steps and actions
- Add blue color scale to widget SCSS
- Fix node overflow and progress bar rendering issues
- Add English translations for dashboard components

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

spec/mailboxes/mailbox_helper_spec.rb

@@ -0,0 +1,80 @@
+require 'rails_helper'
+
+RSpec.describe MailboxHelper do
+  include ActionMailbox::TestHelper
+
+  # Setup anonymous class
+  let(:mailbox_helper_obj) do
+    Class.new do
+      include MailboxHelper
+      attr_accessor :conversation, :processed_mail
+
+      def initialize(conversation, processed_mail)
+        @conversation = conversation
+        @processed_mail = processed_mail
+      end
+    end
+  end
+
+  let(:mail) { create_inbound_email_from_fixture('welcome.eml').mail }
+  let(:processed_mail) { MailPresenter.new(mail) }
+  let(:conversation) { create(:conversation) }
+  let(:dummy_message) { create(:message) }
+
+  describe '#create_message' do
+    before do
+      create_list(:message, 5, conversation: conversation)
+    end
+
+    context 'when message already exist' do
+      it 'creates a new message' do
+        helper_instance = mailbox_helper_obj.new(conversation, processed_mail)
+
+        expect(conversation.messages).to receive(:find_by).with(source_id: processed_mail.message_id).and_return(dummy_message)
+        expect(conversation.messages).not_to receive(:create!)
+
+        helper_instance.send(:create_message)
+      end
+    end
+
+    context 'when message does not exist' do
+      it 'creates a new message' do
+        helper_instance = mailbox_helper_obj.new(conversation, processed_mail)
+
+        expect(conversation.messages).to receive(:find_by).with(source_id: processed_mail.message_id).and_return(nil)
+        expect(conversation.messages).to receive(:create!)
+
+        helper_instance.send(:create_message)
+      end
+    end
+  end
+
+  describe '#embed_plain_text_email_with_inline_image' do
+    let(:mail_attachment) do
+      {
+        original: OpenStruct.new(filename: 'image.png'),
+        blob: get_blob_for('spec/assets/avatar.png', 'image/png')
+      }
+    end
+
+    let(:helper_instance) { mailbox_helper_obj.new(conversation, processed_mail) }
+
+    it 'replaces the image tag in the text content' do
+      helper_instance.instance_variable_set(:@text_content, 'Hello [image: image.png] World')
+      helper_instance.send(:embed_plain_text_email_with_inline_image, mail_attachment)
+
+      text_content = helper_instance.instance_variable_get(:@text_content)
+
+      expect(text_content).to include(Rails.application.routes.url_helpers.url_for(mail_attachment[:blob]))
+      expect(text_content).not_to include('[image: avatar.png]')
+    end
+
+    it 'replaces the image tag in the text content even if there is not tag to replace' do
+      helper_instance.instance_variable_set(:@text_content, 'Hello World')
+      helper_instance.send(:embed_plain_text_email_with_inline_image, mail_attachment)
+
+      text_content = helper_instance.instance_variable_get(:@text_content)
+      expect(text_content).to include(Rails.application.routes.url_helpers.url_for(mail_attachment[:blob]))
+    end
+  end
+end