feat(java): add new enum values and update scan method parameters

- Added new enum values HGLIB_OPTION_ENUMVALUE_SMZS_LXSM and
  HGLIB_OPTION_ENUMVALUE_SMZS_SMZDZS to HGScannerConstants
- Updated startScan method parameter from 'param' to 'imageCaller' in
  HGScannerWrapper
- Modified native library call to use separate caller parameters for event
  and image callbacks
- Updated JavaDoc to reflect the parameter name change

src/main/java/vip/jcfd/sdk/HGScannerConstants.java

@@ -207,4 +207,13 @@ public class HGScannerConstants {
 
     public static final int HGLIB_OPTION_ENUMVALUE_SMZS_LXSM = 64;
     public static final int HGLIB_OPTION_ENUMVALUE_SMZS_SMZDZS = 65;
+
+    public static final int HGLIB_DEVSCAN_EVENT_BEGIN = 1; /* 扫描开始 */
+    public static final int HGLIB_DEVSCAN_EVENT_END = 2; /* 扫描结束 */
+    public static final int HGLIB_DEVSCAN_EVENT_INFO = 3; /* 扫描信息 */
+
+    // "单面"
+    public static final int HGLIB_OPTION_ENUMVALUE_SMYM_DM = 45;
+    // "双面"
+    public static final int HGLIB_OPTION_ENUMVALUE_SMYM_SM = 46;
 }

src/main/java/vip/jcfd/sdk/HGScannerWrapper.java

@@ -9,6 +9,9 @@ import com.sun.jna.ptr.IntByReference;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.Future;
+import java.util.logging.Logger;
 
 /**
  * 扫描仪JNA封装类
@@ -16,6 +19,8 @@ import java.util.List;
  */
 public class HGScannerWrapper {
 
+    private static final Logger log = Logger.getLogger(HGScannerWrapper.class.getName());
+
     private static final int STRING_BUFFER_SIZE = 256;
     private static HGScannerLib scannerLib;
 
@@ -235,6 +240,18 @@ public class HGScannerWrapper {
         return scannerLib.HGLib_StartDeviceScan(device, eventCallback, eventCaller, imageCallback, imageCaller);
     }
 
+    public static Future<Boolean> startScanAsync(HGScannerLib.HGLibDevice device, HGScannerLib.HGLibDeviceScanImageFunc imageFunc) {
+        CompletableFuture<Boolean> future = new CompletableFuture<>();
+        scannerLib.HGLib_StartDeviceScan(device, (ignore, event, operateCode, info, param) -> {
+            log.info(String.format("[图片扫描] [event: %d] [operateCode=%d]: %s", event, operateCode, info));
+            if (event == HGScannerConstants.HGLIB_DEVSCAN_EVENT_END) {
+                future.complete(true); // 或适当的返回值
+            }
+        }, null, imageFunc, null);
+        return future;
+    }
+
+
     /**
      * 停止扫描
      *