The backend already returns is_available:false for past slots, but a
slot can lapse after the list is loaded. Disable any slot whose start
(unix seconds) is before now in the time grid, so a just-passed slot
can't be clicked. The grid disabling makes a SendAppo-level guard
redundant — a past slot can no longer be selected.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The slots API returns data.sessions[].slots[] with start_time (HH:MM),
is_available, and start/end unix timestamps — not the morning/evening +
time/status shape the UI assumed. Add lib/appointmentSlots.js to flatten
sessions into morning/evening by start_time, fetch with doctor.uuid, and
read item.start_time / item.is_available in the slot grid. Derive the
clinic address from the already-loaded doctor.address by location_id
instead of a separate auth-required call.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
