* fix: reconcile sticky update indicators with Anatomy preview
Sidebar, Updates filter, and Fleet treated retained partial/failed
scanner has_update as confirmed. Keep raw state for retention/notifications,
project confirmed-only to APIs, show distinct incomplete indicators, and
clear sticky rows only after an authoritative-negative preview.
Closes#1685
* test: align sidebar truncate E2E with failed-over-retained precedence
Purple update indicators are confirmed-only; hasUpdate with a failed
check correctly shows the failed trailing icon.
* fix: clear confirmed update rows on authoritative-negative preview
Address audit SF-1/SF-2/SF-3: observation-watermark clears for older
ok+has_update rows (DB + memory gens), Fleet checkability parity with
backend not_checkable, and Updates chip confirmed-only regressions.
* fix: tombstone equal-generation writers on preview clear
Advance the per-stack write generation when clearing at the observation
watermark so a scanner reserved before preview cannot recreate the row
after an authoritative-negative reconcile.
* fix: clear sticky updates with digest and tag preview parity
Share detection across scanner and preview, keep GET read-only with POST reconcile, gate Apply to digest and rebuild updates, and invalidate the hub fleet cache on clear.
* test: set digestUpdate on auto-update checkImage mocks
Scheduler and execute routes now gate Compose on digest drift; fixtures that expect an apply need digestUpdate so they exercise the update path.
* fix: clear unused lint errors on sticky update branch
Drop unused partial helper and fleet invalidate import; keep the CacheService inflight self-ref as let with an eslint exception so tsc stays green.
* fix: use inflight holder for CacheService prefer-const
Keep generation-aware ownership without a let self-reference that fights ESLint and tsc.
Anso