feat: add audit trail for channel updates (#7396)

enterprise/app/models/enterprise/channelable.rb

@@ -0,0 +1,34 @@
+module Enterprise::Channelable
+  extend ActiveSupport::Concern
+
+  # Active support concern has `included` which changes the order of the method lookup chain
+  # https://stackoverflow.com/q/40061982/3824876
+  # manually prepend the instance methods to combat this
+  included do
+    prepend InstanceMethods
+  end
+
+  module InstanceMethods
+    def create_audit_log_entry
+      account = self.account
+      associated_type = 'Account'
+
+      return if inbox.nil?
+
+      auditable_id = inbox.id
+      auditable_type = 'Inbox'
+      audited_changes = saved_changes.except('updated_at')
+
+      return if audited_changes.blank?
+
+      Enterprise::AuditLog.create(
+        auditable_id: auditable_id,
+        auditable_type: auditable_type,
+        action: 'update',
+        associated_id: account.id,
+        associated_type: associated_type,
+        audited_changes: audited_changes
+      )
+    end
+  end
+end