Update test to expect join_date validation error. Fix toggle button selector in cycle view test. Remove unnecessary cleanup from create_cycle helper.
Remove paid field from Member resource, database migration, tests, seeds, and UI. This field is no longer needed as payment status is now tracked via membership fee cycles.
Allow join_date to be set in the future. Only validation remaining is that exit_date must be after join_date.
Users who need birthday data can use custom fields instead. Closes #161