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>

app/services/messages/new_message_notification_service.rb

@@ -0,0 +1,51 @@
+class Messages::NewMessageNotificationService
+  pattr_initialize [:message!]
+
+  def perform
+    return unless message.notifiable?
+
+    notify_conversation_assignee
+    notify_participating_users
+  end
+
+  private
+
+  delegate :conversation, :sender, :account, to: :message
+
+  def notify_conversation_assignee
+    return if conversation.assignee.blank?
+    return if already_notified?(conversation.assignee)
+    return if conversation.assignee == sender
+
+    NotificationBuilder.new(
+      notification_type: 'assigned_conversation_new_message',
+      user: conversation.assignee,
+      account: account,
+      primary_actor: message.conversation,
+      secondary_actor: message
+    ).perform
+  end
+
+  def notify_participating_users
+    participating_users = conversation.conversation_participants.map(&:user)
+    participating_users -= [sender] if sender.is_a?(User)
+
+    participating_users.uniq.each do |participant|
+      next if already_notified?(participant)
+
+      NotificationBuilder.new(
+        notification_type: 'participating_conversation_new_message',
+        user: participant,
+        account: account,
+        primary_actor: message.conversation,
+        secondary_actor: message
+      ).perform
+    end
+  end
+
+  # The user could already have been notified via a mention or via assignment
+  # So we don't need to notify them again
+  def already_notified?(user)
+    conversation.notifications.exists?(user: user, secondary_actor: message)
+  end
+end