fix(sync): replay interrupted messages immediately

src/FieldLogger.Sync/OutboundStore.cs

@@ -98,10 +98,12 @@ public sealed class SqliteOutboundStore : IOutboundStore
     {
         await _db.CreateTableAsync<OutboundMessage>();
         // A process crash can leave rows in-flight after the broker accepted them but before
-        // the application ack was applied. Requeue them; pointId makes the replay idempotent.
+        // the application ack was applied. Requeue them for immediate replay; pointId makes
+        // the replay idempotent. A zero due-time also keeps recovery independent of whichever
+        // clock implementation the sync engine uses.
         await _db.ExecuteAsync(
             "UPDATE outbound SET Status = ?, NextAttemptUnixMs = ? WHERE Status = ?",
-            (int)OutboundStatus.Pending, DateTimeOffset.UtcNow.ToUnixTimeMilliseconds(),
+            (int)OutboundStatus.Pending, 0,
             (int)OutboundStatus.InFlight);
     }