Add mutual visibility support

app/models/status_capability_token.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: status_capability_tokens
+#
+#  id         :bigint(8)        not null, primary key
+#  status_id  :bigint(8)        not null
+#  token      :string
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+class StatusCapabilityToken < ApplicationRecord
+  belongs_to :status
+
+  validates :token, presence: true
+
+  before_validation :generate_token, on: :create
+
+  private
+
+  def generate_token
+    self.token = Doorkeeper::OAuth::Helpers::UniqueToken.generate
+  end
+end