A COMPLETE yeeke sync run (natural page-walk end, not stopped by a
duplicate-fingerprint break or MaxPages exhaustion) that also wrote zero
record failures now flips any yeeke_return_package/yeeke_return_item still
"ok" from before the run to sync_status="missing" with missing_since
stamped, in one transaction. Rows are never deleted. A 20% safety valve
skips marking (and records why in error_message) when the candidate count
would be too large; a reappearing record recovers to "ok" with
missing_since cleared.
returnmatch.availableReturnPool now excludes missing items/packages from
matching, without auto-cancelling any existing active match; List()/Detail()
surface syncStatus/missingSince so the SYB products match column, its
compare dialog, and the yeeke returns list can warn or label rows as
unavailable.
Adds migration 1789800900000_return_missing (AutoMigrate alone does not
reach existing databases).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NTDbDcwbDw1TSAcE6wfh2F
