Add E2EE API (#13820)

app/workers/push_encrypted_message_worker.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+class PushEncryptedMessageWorker
+  include Sidekiq::Worker
+  include Redisable
+
+  def perform(encrypted_message_id)
+    encrypted_message = EncryptedMessage.find(encrypted_message_id)
+    message           = InlineRenderer.render(encrypted_message, nil, :encrypted_message)
+    timeline_id       = "timeline:#{encrypted_message.device.account_id}:#{encrypted_message.device.device_id}"
+
+    redis.publish(timeline_id, Oj.dump(event: :encrypted_message, payload: message, queued_at: (Time.now.to_f * 1000.0).to_i))
+  rescue ActiveRecord::RecordNotFound
+    true
+  end
+end