分离恢复使用独立丢弃操作

新增独立的恢复状态丢弃入口

完成与 finalize 的共享状态删除逻辑

apps/ai-game-creator-shell/src-tauri/src/main.rs

@@ -353,7 +353,7 @@ fn inspect_separation_recovery(
 fn finalize_separation(project_path: String, asset_id: String) -> Result<(), String> {
     let root = Path::new(project_path.trim());
     enforce_project_permission_policy(root, "asset.register")?;
-    ui_editor::commands::separation::finalize_separation(root, &asset_id)
+    ui_editor::commands::separation::discard_separation_recovery(root, &asset_id)
 }
 
 #[tauri::command]

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

@@ -187,6 +187,14 @@ pub fn inspect_separation_recovery(
 }
 
 pub fn finalize_separation(root: &Path, asset_id: &str) -> Result<(), String> {
+    remove_separation_state(root, asset_id)
+}
+
+pub fn discard_separation_recovery(root: &Path, asset_id: &str) -> Result<(), String> {
+    remove_separation_state(root, asset_id)
+}
+
+fn remove_separation_state(root: &Path, asset_id: &str) -> Result<(), String> {
     let state_path = separation_state_path(root, asset_id)?;
     match fs::remove_file(&state_path) {
         Ok(()) => Ok(()),