Open SQLite with WAL and bound delivery re-dispatch by ownership (closes #256)

internal/delivery/target_log.go

@@ -55,12 +55,17 @@ func (t *logTarget) Deliver(
 
 	t.eng.observeAttempt(d.Target.Type, elapsed)
 
-	t.eng.recordResult(
+	err := t.eng.recordResult(
 		webhookDB, d, 1, true, 0, "", "",
 		elapsed.Milliseconds(),
 	)
+	if err != nil {
+		t.eng.bookkeepingFailed(d, err)
 
-	t.eng.updateDeliveryStatus(
+		return
+	}
+
+	t.eng.settleStatus(
 		webhookDB, d, d.Target.Type,
 		database.DeliveryStatusDelivered,
 	)