修复合并命令测试节点构造

补齐 NodeOffset 默认值以恢复 Rust 测试构建

apps/ai-game-creator-shell/src-tauri/src/ui_editor/commands/merge.rs

@@ -520,7 +520,7 @@ mod tests {
     };
     use crate::ui_editor::layout::children_display_mode::ChildrenDisplayMode;
     use crate::ui_editor::layout::control_layout::ControlLayout;
-    use crate::ui_editor::layout::node::{Node, NodeMetadata, NodeSource, StageStatus};
+    use crate::ui_editor::layout::node::{Node, NodeMetadata, NodeOffset, NodeSource, StageStatus};
     use crate::ui_editor::layout::transform::Transform;
     use crate::ui_editor::state::{State, UITree};
     use crate::ui_editor::utils::{NodeId, UIDesignImageId};
@@ -542,6 +542,7 @@ mod tests {
             component: None,
             children_display_mode: ChildrenDisplayMode::Stack,
             children,
+            offset: NodeOffset::default(),
         }
     }