v0.1.2

Fixed

• Easy / medium / hard / total-solved counts (and the headline sensor)
  always read as zero. The integration was pulling these from the
  /<user> endpoint, which returns only avatar / ranking metadata; the
  counts live on /<user>/profile. The client now uses /<user>/profile
  for both validation and refreshes, and acceptance rate is derived from
  matchedUserStats since /<user>/profile doesn't expose it directly.