CAN's create-note handler should fire NOTE-CREATED-ERROR on failure

CAN's create-note handler will attempt to create a new note at an address in the notebook. If this goes wrong for any reason, the handler should fire a NOTE-CREATED-ERROR event to allow other handlers to listen and respond.

Backlinks

• CAN's create-note handler should listen for COMMAND_ADD
  • Once the create-note handler has successfully done this it should fire a NOTE_CREATED event. If it fails, it should fire a NOTE-CREATED-ERROR event.