f99218cfae
Commit b3a3f80 removed disabled/stub attributes from Reschedule
buttons but never implemented the onClick handlers. Buttons were
enabled but inert — clicking did nothing, perceived as "blank page."
Restore disabled state with "Rescheduling — coming soon" tooltip
to both Dashboard and Appointments Reschedule buttons.
Full reschedule flow requires a /api/portal/appointments/:id/reschedule
endpoint — tracked separately.
Co-Authored-By: Paperclip <noreply@paperclip.ing>