minor nits suggested on PR review

Signed-off-by: Alfredo Gutierrez Grajeda <alfredo@hashgraph.com>

Author: AlfredoG87

block-node/backfill/src/main/java/org/hiero/block/node/backfill/BackfillPlugin.java

@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: Apache-2.0
 package org.hiero.block.node.backfill;
 
+import static java.lang.System.Logger.Level.DEBUG;
 import static java.lang.System.Logger.Level.INFO;
 import static java.lang.System.Logger.Level.TRACE;
 
@@ -337,7 +338,7 @@ private void backfillGap(LongRange gap, BackfillType backfillType) throws Interr
             getLatch(backfillType).set(new CountDownLatch(batchOfBlocks.size()));
 
             if (batchOfBlocks.isEmpty()) {
-                LOGGER.log(TRACE, "No blocks fetched for gap {0}, skipping", chunk);
+                LOGGER.log(DEBUG, "No blocks fetched for gap {0}, skipping", chunk);
                 continue; // Skip empty batches
             }
 

block-node/backfill/src/main/java/org/hiero/block/node/backfill/client/BlockNodeClient.java

@@ -14,7 +14,8 @@
 
 public class BlockNodeClient {
     // Options definition for all gRPC services in the block node client
-    private record Options(Optional<String> authority, String contentType) implements ServiceInterface.RequestOptions {}
+    private static record Options(Optional<String> authority, String contentType)
+            implements ServiceInterface.RequestOptions {}
 
     private static final BlockNodeClient.Options OPTIONS =
             new BlockNodeClient.Options(Optional.empty(), ServiceInterface.RequestOptions.APPLICATION_GRPC);