@core/sync-service@1.7.9

Patch Changes

• ca04983: Prevent a dead or stalled shape consumer from pinning the replication slot's confirmed_flush_lsn indefinitely, which caused unbounded WAL retention. The collector now monitors the writer behind every pending flush entry — a crashed writer unpins its entry immediately, and a shape making no flush progress past a grace period is challenged and invalidated if it doesn't respond.
• bb69764: Fix keepalives acknowledging WAL past small transactions whose storage flush hasn't been confirmed yet. A crash in that window could permanently lose the transaction for all affected shapes, since the replication slot had already advanced past it.