feat: add printWarningLogOnce to suppress per-record deprecation spam

Replace per-record printWarningLog calls for DEPRECATED_SKYFLOW_ID_KEY
with printWarningLogOnce so the deprecation notice fires at most once
per JVM session regardless of result set size.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Devesh-Skyflow

src/main/java/com/skyflow/utils/logger/LogUtil.java

@@ -4,12 +4,16 @@
 import com.skyflow.logs.InfoLogs;
 import com.skyflow.utils.Constants;
 
+import java.util.Collections;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.logging.*;
 
 public final class LogUtil {
     private static final Logger LOGGER = Logger.getLogger(LogUtil.class.getName());
     private static final String SDK_LOG_PREFIX = "[" + Constants.SDK_PREFIX + "] ";
     private static boolean isLoggerSetupDone = false;
+    private static final Set<String> WARNED_ONCE = Collections.newSetFromMap(new ConcurrentHashMap<>());
 
     synchronized public static void setupLogger(LogLevel logLevel) {
         isLoggerSetupDone = true;
@@ -56,6 +60,11 @@ public static void printWarningLog(String message) {
             LOGGER.warning(SDK_LOG_PREFIX + message);
     }
 
+    public static void printWarningLogOnce(String message) {
+        if (isLoggerSetupDone && WARNED_ONCE.add(message))
+            LOGGER.warning(SDK_LOG_PREFIX + message);
+    }
+
     public static void printInfoLog(String message) {
         if (isLoggerSetupDone)
             LOGGER.info(SDK_LOG_PREFIX + message);

src/main/java/com/skyflow/vault/controller/VaultController.java

@@ -133,7 +133,7 @@ private static synchronized HashMap<String, Object> getFormattedGetRecord(V1Fiel
 
         if (getRecord.containsKey("skyflow_id")) {
             getRecord.put("skyflowId", getRecord.get("skyflow_id"));
-            LogUtil.printWarningLog(InfoLogs.DEPRECATED_SKYFLOW_ID_KEY.getLog());
+            LogUtil.printWarningLogOnce(InfoLogs.DEPRECATED_SKYFLOW_ID_KEY.getLog());
         }
 
         return getRecord;
@@ -158,7 +158,7 @@ private static synchronized HashMap<String, Object> getFormattedQueryRecord(V1Fi
 
         if (queryRecord.containsKey("skyflow_id")) {
             queryRecord.put("skyflowId", queryRecord.get("skyflow_id"));
-            LogUtil.printWarningLog(InfoLogs.DEPRECATED_SKYFLOW_ID_KEY.getLog());
+            LogUtil.printWarningLogOnce(InfoLogs.DEPRECATED_SKYFLOW_ID_KEY.getLog());
         }
 
         return queryRecord;