refactor(widget): 优化组件JSON中表格ID回填逻辑

- 将原有的递归遍历方式改为迭代方式处理组件树
- 添加对PC和移动端两种模式的支持
- 重构代码结构，提取独立的处理方法
- 增强空值检查，提高代码健壮性
- 改进子组件列表的递归处理逻辑

common/common-online/src/main/java/apelet/common/online/util/WidgetJsonUtil.java

@@ -351,14 +351,33 @@ public class WidgetJsonUtil {
      * @param tableId    子表Id。
      */
     public static void backfillTableId(JSONObject widgetJson, String tableName, Long tableId) {
-        walkAllModes(widgetJson, widget -> {
+        if (widgetJson == null) return;
+        for (String mode : new String[]{"pc", "mobile"}) {
+            JSONObject modeObj = widgetJson.getJSONObject(mode);
+            if (modeObj == null) continue;
+            backfillTableIdInWidgets(modeObj.getJSONArray("widgetList"), tableName, tableId);
+            JSONObject tableWidget = modeObj.getJSONObject("tableWidget");
+            if (tableWidget != null) {
+                backfillTableIdInWidgets(tableWidget.getJSONArray("childWidgetList"), tableName, tableId);
+            }
+        }
+    }
+
+    private static void backfillTableIdInWidgets(JSONArray widgetList, String tableName, Long tableId) {
+        if (CollUtil.isEmpty(widgetList)) return;
+        for (int i = 0; i < widgetList.size(); i++) {
+            JSONObject widget = widgetList.getJSONObject(i);
+            if (widget == null) continue;
             if (widget.getInteger("widgetType") != null && 100 == widget.getInteger("widgetType")) {
                 JSONObject bindData = widget.getJSONObject("bindData");
                 if (bindData != null && tableName.equals(bindData.getString("tableName"))) {
                     bindData.put("tableId", tableId);
                 }
+                continue;
+            }
+            JSONArray childWidgetList = widget.getJSONArray("childWidgetList");
+            if (CollUtil.isNotEmpty(childWidgetList)) backfillTableIdInWidgets(childWidgetList, tableName, tableId);
         }
-        });
     }
 
     /**