Pressing Complete on a session that fails leaves nothing in the journal:
the decline path has no logging, so a failed sell is indistinguishable
from a button that never fired. Add the telemetry that was missing —
completeWithCard logs outcome, duration and reason, and the entry line
now says whether selling is available at all.
Two real defects alongside it. A session whose withdraw step the card
server withheld (daily limit spent, card disabled) still rendered a
Complete Sale button that could only ever fail; it now shows the
server's reason instead. And the decline path advised 'tap your card to
try again' even for refusals a re-tap cannot lift, so 'blocked' is now
its own outcome: nothing was consumed, the session stays loaded, and no
re-tap is suggested.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>