The write-path convergence stops new duplicate slot rows, but accounts
that already accrued a pending + taken pair for one dose keep an inflated
expected count, a phantom taken marker, and a suppressed "due now" prompt
until the bad rows are cleared.
Add a boot-time, idempotent cleanup queue (mirroring the existing
backfill queues): discover only the users holding a same-slot duplicate,
then per medication snap every live intake to its canonical slot, keep
the most-actioned row per slot (taken over skipped over pending),
normalise its instant, soft-delete the losers, and recompute the
affected compliance rollups. Rows that resolve to no scheduled slot
(PRN / as-needed) are never collapsed. A second pass is a no-op.
Registered in the worker's queue list with a static guard test, after a
prior incident where a queue was built but never registered and silently
never ran.
Marc-André Bombeck
5047eb7a20