保证素材批次补丁失败时状态原子

在修改状态前预检所有成功绑定节点的裁剪路径，避免中途错误留下部分更新。

apps/ai-game-creator-shell/src-tauri/src/ui_editor/commands/separation/workflow/patch.rs

@@ -30,6 +30,13 @@ pub fn apply_batch_patch(
         &batch,
         processed_dimensions,
     )?;
+    for decision in decisions {
+        if let BindingDecision::Ok { to_node, .. } = decision {
+            if !cut_paths.contains_key(to_node) {
+                return Err(format!("缺少节点 {} 的 cut 图片", to_node.as_str()));
+            }
+        }
+    }
     let rework_counts = batch_nodes
         .iter()
         .map(|node| (node.id.clone(), node.rework_count))
@@ -40,7 +47,7 @@ pub fn apply_batch_patch(
             BindingDecision::Ok { to_node, .. } => {
                 let path = cut_paths
                     .get(to_node)
-                    .ok_or_else(|| format!("缺少节点 {} 的 cut 图片", to_node.as_str()))?;
+                    .expect("cut path presence validated before patch");
                 state.bound.push(BoundNode {
                     node_id: to_node.clone(),
                     cut_image_path: path.clone(),