Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/controllers/api/v1/widget/campaigns_controller.rb

@@ -0,0 +1,16 @@
+class Api::V1::Widget::CampaignsController < Api::V1::Widget::BaseController
+  skip_before_action :set_contact
+
+  def index
+    account = @web_widget.inbox.account
+    @campaigns = if account.feature_enabled?('campaigns')
+                   @web_widget
+                     .inbox
+                     .campaigns
+                     .where(enabled: true, account_id: account.id)
+                     .includes(:sender)
+                 else
+                   []
+                 end
+  end
+end