迁移 UI 编辑器素材导入到阻塞工作线程

将本地与远端素材导入的同步校验和文件事务移入 Tokio blocking worker
保持项目写锁只覆盖 worker 内的连续同步临界区
补充异步导入命令的本地图片导入回归测试

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

@@ -44,7 +44,7 @@ pub(crate) enum UiEditorAssetImportRequest {
 
 #[cfg(test)]
 mod ui_editor_asset_import_request_tests {
-    use super::UiEditorAssetImportRequest;
+    use super::*;
 
     #[test]
     fn local_request_accepts_tauri_camel_case_fields() {
@@ -63,6 +63,42 @@ mod ui_editor_asset_import_request_tests {
 
         assert!(matches!(request, UiEditorAssetImportRequest::Local { .. }));
     }
+
+    #[tokio::test]
+    async fn asset_import_async_command_completes_local_file_import() {
+        let project = tempfile::tempdir().expect("create project directory");
+        let root = project.path();
+        init_local_game_project_at(root, "ui-editor-import", "UI 编辑器导入测试")
+            .expect("initialize project");
+        let source = tempfile::NamedTempFile::new().expect("create image source");
+        fs::write(
+            source.path(),
+            [
+                0x89, b'P', b'N', b'G', b'\r', b'\n', 0x1a, b'\n', 0, 0, 0, 0,
+            ],
+        )
+        .expect("write image source");
+
+        let result = import_ui_editor_assets(UiEditorAssetImportRequest::Local {
+            project_path: root.to_string_lossy().into_owned(),
+            local_source_paths: vec![source.path().to_string_lossy().into_owned()],
+            local_policy: AssetImportPolicy {
+                destination: "assets/uploads".to_string(),
+                accepted_media_types: vec!["image/png".to_string()],
+                accepted_extensions: vec!["png".to_string()],
+            },
+            local_requirements: AssetImportRequirements {
+                max_items: 1,
+                max_file_size_bytes: Some(1024),
+                max_total_size_bytes: Some(1024),
+            },
+        })
+        .await
+        .expect("import local image through blocking worker");
+
+        assert_eq!(result.assets.len(), 1);
+        assert!(root.join(&result.assets[0].local_path).is_file());
+    }
 }
 
 fn validate_asset_import_policy(policy: &AssetImportPolicy) -> Result<bool, String> {
@@ -175,6 +211,14 @@ fn validate_remote_asset_import_requirements(
 #[tauri::command]
 pub(crate) async fn import_ui_editor_assets(
     request: UiEditorAssetImportRequest,
+) -> Result<LocalImportResult, String> {
+    tokio::task::spawn_blocking(move || import_ui_editor_assets_blocking(request))
+        .await
+        .map_err(|error| format!("UI 编辑器素材导入任务意外终止：{error}"))?
+}
+
+fn import_ui_editor_assets_blocking(
+    request: UiEditorAssetImportRequest,
 ) -> Result<LocalImportResult, String> {
     match request {
         UiEditorAssetImportRequest::Local {
@@ -211,7 +255,6 @@ pub(crate) async fn import_ui_editor_assets(
                 remote_assets,
                 remote_requirements.max_file_size_bytes.unwrap_or(u64::MAX),
             )
-            .await
         }
     }
 }
@@ -2161,7 +2204,7 @@ mod ui_editor_font_tests {
     }
 }
 
-pub(crate) async fn import_ui_editor_remote_assets(
+pub(crate) fn import_ui_editor_remote_assets(
     project_path: String,
     assets: Vec<serde_json::Value>,
     max_file_size: u64,