refactor(ui): 优化表格数据加载和异步单元格更新逻辑

修复表格高度调整时频繁触发数据加载的问题，增加调整阈值判断
改进异步单元格更新逻辑，增加取消机制和状态检查
重构常量命名，使用更清晰的KEY_SYNC_BY前缀
添加日志记录和注释说明

src/main/java/com/ecep/contract/manager/ui/AbstEntityManagerSkin.java

@@ -195,10 +195,15 @@ public abstract class AbstEntityManagerSkin<T extends IdentityEntity, TV extends
         loadTableDataSet(true);
     }
 
+    private boolean allowResize = true;
+
     /**
      * 根据表格高度重新计算分页的页大小
      */
     private void resizeTable(Object observable, Bounds old, Bounds newBounds) {
+        if (!allowResize) {
+            return;
+        }
         double tableHeight = newBounds.getHeight();
         if (tableHeight <= 0) {
             return;
@@ -208,8 +213,13 @@ public abstract class AbstEntityManagerSkin<T extends IdentityEntity, TV extends
         if (lookup != null) {
             double rowHeight = lookup.prefHeight(-1);
             int rows = (int) Math.round(table.getHeight() / rowHeight) - 1;
-            int pageNumber = (int) Math.abs(currentPageable.getOffset() / rows);
+            // 只有当行数变化超过一定阈值时才重新加载数据
+            int currentRows = currentPageable.getPageSize();
+            if (Math.abs(rows - currentRows) <= 2) {
+                return; // 避免微小变化导致频繁刷新
+            }
 
+            int pageNumber = (int) Math.abs(currentPageable.getOffset() / rows);
             if (currentPageable.getPageNumber() == pageNumber && currentPageable.getPageSize() == rows) {
                 return;
             }
@@ -359,6 +369,7 @@ public abstract class AbstEntityManagerSkin<T extends IdentityEntity, TV extends
     private CompletableFuture<Void> _reloadTableData() {
         CompletableFuture<Void> future = new CompletableFuture<>();
         Platform.runLater(() -> {
+            allowResize = false; // 禁用调整
             dataSet.clear();
             runAsync(() -> {
                 controller.setStatus("载入中...");
@@ -366,8 +377,10 @@ public abstract class AbstEntityManagerSkin<T extends IdentityEntity, TV extends
                 Platform.runLater(() -> {
                     try {
                         updateTableDataSet(models);
+                        allowResize = true; // 恢复调整
                         future.complete(null);
                     } catch (Exception e) {
+                        allowResize = true; // 恢复调整
                         future.completeExceptionally(e);
                     }
                 });
@@ -381,7 +394,23 @@ public abstract class AbstEntityManagerSkin<T extends IdentityEntity, TV extends
 
     protected void updateTableDataSet(List<TV> models) {
         long timeMillis = System.currentTimeMillis();
-        dataSet.setAll(models);
+        // 清除所有选择状态，避免选择状态混乱
+        if (getTableView() != null && getTableView().getSelectionModel() != null) {
+            getTableView().getSelectionModel().clearSelection();
+        }
+        
+        // 先清空再设置新数据，避免数据叠加
+        dataSet.clear();
+        if (models != null) {
+            dataSet.addAll(models);
+        }
+        
+        // 强制刷新表格布局
+        if (getTableView() != null) {
+            getTableView().requestLayout();
+            getTableView().refresh();
+        }
+        
         long timeCost = System.currentTimeMillis() - timeMillis;
         if (logger.isDebugEnabled()) {
             logger.debug("update table dataSet cost: {} ms", timeCost);