Throttle fallback graph build progress logging

Author: tae898

engine/src/main/java/com/arcadedb/index/vector/LSMVectorIndex.java

@@ -796,8 +796,10 @@ private void buildGraphFromScratchWithRetry(final GraphBuildCallback graphCallba
           return;
 
         final long now = System.currentTimeMillis();
-        final boolean shouldLog = processedNodes == totalNodes
-            || (now - lastLogTimeMs[0] >= 2000 && processedNodes != lastLoggedProcessed[0]);
+        final boolean progressed = processedNodes != lastLoggedProcessed[0];
+        final boolean timeElapsed = now - lastLogTimeMs[0] >= 2000;
+        final boolean reachedEnd = processedNodes >= totalNodes && lastLoggedProcessed[0] != totalNodes;
+        final boolean shouldLog = progressed && (timeElapsed || reachedEnd);
 
         if (shouldLog) {
           LogManager.instance().log(this, Level.INFO,