A slight refactor of slot related sanity check cloud function (+ makes the result conform to SlotSanityCheckReport structure).
Introduces a db slot / attendance autofix function - with respect to report it:
deletes orphaned attendances
creates attendance document for slot (if attendance doesn't exist)
if dates mismatch - updates the attendance date to match the slot
A slight refactor of slot related sanity check cloud function (+ makes the result conform to
SlotSanityCheckReportstructure). Introduces a db slot / attendance autofix function - with respect to report it: