added 260907 version of worker toolkit

worker-toolkit-flaredown/repo/backend/app/models/invitation.rb

@@ -0,0 +1,27 @@
+class Invitation
+  include ActiveModel::Serialization
+
+  attr_reader :id, :email, :user
+
+  def initialize(id, user)
+    @id = id
+    @user = user
+    @email = user.email
+  end
+
+  def accept!(params = {})
+    User.accept_invitation!({invitation_token: id}.merge(params))
+  end
+
+  def self.find(id)
+    # FIXME
+    # rubocop:disable Rails/DynamicFindBy
+    user = User.find_by_invitation_token(id, true)
+    # rubocop:enable Rails/DynamicFindBy
+    # FIXME
+    # rubocop:disable Style/SignalException
+    fail ActiveRecord::RecordNotFound if user.nil?
+    # rubocop:enable Style/SignalException
+    new(id, user)
+  end
+end