@type t() :: %FerricStore.Flow.QueryIndexValidation{
  checked_entries: non_neg_integer(),
  checked_records: non_neg_integer(),
  completed_shards: non_neg_integer(),
  current_phases: [binary()],
  failure_reason: binary() | nil,
  mismatches: non_neg_integer(),
  phase_counts: %{required(binary()) => non_neg_integer()},
  raw: map(),
  scope: binary(),
  status: binary(),
  total_shards: pos_integer(),
  validated_at_ms: non_neg_integer() | nil
}