I've completed the investigation and planning for the External Dogs UI issues. I found that `ExternalDogs.jsx` used undefined CSS classes and a different layout than `DogList.jsx`. I've documented my findings and a proposed fix in [.zenflow/tasks/6e6e64eb-cb72-459e-b943-27554a749459/investigation.md](./.zenflow/tasks/6e6e64eb-cb72-459e-b943-27554a749459/investigation.md) and updated the [plan.md](./.zenflow/tasks/new-task-6e6e/plan.md).
