Oura's current authorization server enforces scopes per collection.
daily_spo2 needs spo2; vO2_max, daily_cardiovascular_age and
daily_resilience need heart_health. The authorize request now asks for
both.
A grant issued before keeps answering 401 on those four collections
while every other one succeeds. Such a 401 next to a success is now
recorded as a scope gap rather than a failure: it no longer counts
toward the reconnect threshold, it no longer forces a token refresh once
known, and the Oura card asks for one reconnect instead. The Withings
card names the readings the account's API plan withholds.