A batch that carried a type with duplicates only moved its
lastReceivedAt, lastTrigger and lastBackgroundAt, so a type whose live
delivery had stalled kept reading as freshly arrived for as long as a
replay, a retry or an older client re-sent its old samples.
The arrival ledger now moves those stamps only for a type the batch
brought at least one new or changed row for. An unchanged stats:
re-post and an hour posted again with its stored value count as
duplicates here; the wire keeps answering updated for them. A
duplicates-only type stamps the new last_seen_duplicate_at column on
its existing row and nothing else. The intake bulk route's dose entry
follows the same rule through the shared recorder. lastSyncedAt and
healthKitLastSyncedAt are unchanged.
GET /api/integrations/healthkit serves the stamp additively as
metricFreshness[].lastSeenDuplicateAt, and the Apple Health card names a
re-send that came after the last arrival.
Refs #1259
Marc-André Bombeck
6a2247e422