Restructure omni services and add Chatwoot research snapshot

research/chatwoot/enterprise/app/models/captain_inbox.rb

@@ -0,0 +1,22 @@
+# == Schema Information
+#
+# Table name: captain_inboxes
+#
+#  id                   :bigint           not null, primary key
+#  created_at           :datetime         not null
+#  updated_at           :datetime         not null
+#  captain_assistant_id :bigint           not null
+#  inbox_id             :bigint           not null
+#
+# Indexes
+#
+#  index_captain_inboxes_on_captain_assistant_id               (captain_assistant_id)
+#  index_captain_inboxes_on_captain_assistant_id_and_inbox_id  (captain_assistant_id,inbox_id) UNIQUE
+#  index_captain_inboxes_on_inbox_id                           (inbox_id)
+#
+class CaptainInbox < ApplicationRecord
+  belongs_to :captain_assistant, class_name: 'Captain::Assistant'
+  belongs_to :inbox
+
+  validates :inbox_id, uniqueness: true
+end