Two retention sweeps run once on app launch before the sync worker
spawns. Mirrors doctate-client-core::startup + ::pending_cleanup.
- Marker sweep: synced markers older than 72h are dropped via
caseStore.cleanupStale; unsynced markers (guarding pending uploads)
are preserved indefinitely.
- Orphan audio sweep: m4a without sidecar (or vice versa) older than
24h goes; tmp leftovers go unconditionally. Paired files survive
regardless of age — the upload worker owns deletion of valid pairs.
Best-effort: failures are logged but never thrown. A hostile filesystem
must not stop the watch from starting.
9 new tests (PendingCleanupTest 6, StartupCleanupTest 3) covering the
window, sibling, and tmp-leftover edges. 52 tests green total.
Brummel
11bbeeaefb