Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/builders/campaigns/campaign_conversation_builder.rb

@@ -0,0 +1,43 @@
+class Campaigns::CampaignConversationBuilder
+  pattr_initialize [:contact_inbox_id!, :campaign_display_id!, :conversation_additional_attributes, :custom_attributes]
+
+  def perform
+    @contact_inbox = ContactInbox.find(@contact_inbox_id)
+    @campaign = @contact_inbox.inbox.campaigns.find_by!(display_id: campaign_display_id)
+
+    ActiveRecord::Base.transaction do
+      @contact_inbox.lock!
+
+      # We won't send campaigns if a conversation is already present
+      raise 'Conversation already present' if @contact_inbox.reload.conversations.present?
+
+      @conversation = ::Conversation.create!(conversation_params)
+      Messages::MessageBuilder.new(@campaign.sender, @conversation, message_params).perform
+    end
+    @conversation
+  rescue StandardError => e
+    Rails.logger.info(e.message)
+    nil
+  end
+
+  private
+
+  def message_params
+    ActionController::Parameters.new({
+                                       content: @campaign.message,
+                                       campaign_id: @campaign.id
+                                     })
+  end
+
+  def conversation_params
+    {
+      account_id: @campaign.account_id,
+      inbox_id: @contact_inbox.inbox_id,
+      contact_id: @contact_inbox.contact_id,
+      contact_inbox_id: @contact_inbox.id,
+      campaign_id: @campaign.id,
+      additional_attributes: conversation_additional_attributes,
+      custom_attributes: custom_attributes || {}
+    }
+  end
+end