Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/models/notification_setting.rb

@@ -0,0 +1,35 @@
+# == Schema Information
+#
+# Table name: notification_settings
+#
+#  id          :bigint           not null, primary key
+#  email_flags :integer          default(0), not null
+#  push_flags  :integer          default(0), not null
+#  created_at  :datetime         not null
+#  updated_at  :datetime         not null
+#  account_id  :integer
+#  user_id     :integer
+#
+# Indexes
+#
+#  by_account_user  (account_id,user_id) UNIQUE
+#
+
+class NotificationSetting < ApplicationRecord
+  # used for single column multi flags
+  include FlagShihTzu
+
+  belongs_to :account
+  belongs_to :user
+
+  DEFAULT_QUERY_SETTING = {
+    flag_query_mode: :bit_operator,
+    check_for_column: false
+  }.freeze
+
+  EMAIL_NOTIFICATION_FLAGS = ::Notification::NOTIFICATION_TYPES.transform_keys { |key| "email_#{key}".to_sym }.invert.freeze
+  PUSH_NOTIFICATION_FLAGS = ::Notification::NOTIFICATION_TYPES.transform_keys { |key| "push_#{key}".to_sym }.invert.freeze
+
+  has_flags EMAIL_NOTIFICATION_FLAGS.merge(column: 'email_flags').merge(DEFAULT_QUERY_SETTING)
+  has_flags PUSH_NOTIFICATION_FLAGS.merge(column: 'push_flags').merge(DEFAULT_QUERY_SETTING)
+end