Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/models/platform_app_permissible.rb

@@ -0,0 +1,24 @@
+# == Schema Information
+#
+# Table name: platform_app_permissibles
+#
+#  id               :bigint           not null, primary key
+#  permissible_type :string           not null
+#  created_at       :datetime         not null
+#  updated_at       :datetime         not null
+#  permissible_id   :bigint           not null
+#  platform_app_id  :bigint           not null
+#
+# Indexes
+#
+#  index_platform_app_permissibles_on_permissibles     (permissible_type,permissible_id)
+#  index_platform_app_permissibles_on_platform_app_id  (platform_app_id)
+#  unique_permissibles_index                           (platform_app_id,permissible_id,permissible_type) UNIQUE
+#
+class PlatformAppPermissible < ApplicationRecord
+  validates :platform_app, presence: true
+  validates :platform_app_id, uniqueness: { scope: [:permissible_id, :permissible_type] }
+
+  belongs_to :platform_app
+  belongs_to :permissible, polymorphic: true
+end