refactor(annotation): 移除对 Label Studio Server 的依赖并切换到内嵌编辑器模式

- 移除 LabelStudioClient 和 SyncService 的导入及使用
- 删除与 Label Studio 项目的创建、删除和同步相关代码
- 修改创建数据集映射功能，改为创建 DataMate 标注项目
- 更新删除映射接口，仅进行软删除不再删除 Label Studio 项目
- 修改同步接口为兼容性保留，实际操作为空操作
- 移除 Label Studio 连接诊断功能
- 更新文档说明以反映内嵌编辑器模式的变化

frontend/public/lsf/lsf.html

@@ -45,6 +45,19 @@
           window.parent.postMessage({ type, payload }, ORIGIN);
         }
 
+        window.addEventListener("error", (event) => {
+          try {
+            postToParent("LS_ERROR", { message: event?.message || "iframe 内发生脚本错误" });
+          } catch (_) {}
+        });
+
+        window.addEventListener("unhandledrejection", (event) => {
+          try {
+            const reason = event?.reason;
+            postToParent("LS_ERROR", { message: reason?.message || String(reason || "iframe 内发生未处理异常") });
+          } catch (_) {}
+        });
+
         function destroyLabelStudio() {
           try {
             if (lsInstance && typeof lsInstance.destroy === "function") {
@@ -166,12 +179,17 @@
               : { id: selected?.id || "draft", result: (selected && selected.result) || [] };
 
           // 最小化对齐 Label Studio Server 的字段（DataMate 侧会原样存储）
-          if (!annotationPayload.task) annotationPayload.task = currentTask?.id || null;
+          const taskId = typeof currentTask?.id === "number" ? currentTask.id : Number(currentTask?.id) || null;
+          const fileId = currentTask?.data?.file_id || currentTask?.data?.fileId || null;
+
+          annotationPayload.id = typeof annotationPayload.id === "number" ? annotationPayload.id : taskId || 1;
+          annotationPayload.task = taskId;
           if (!annotationPayload.created_at) annotationPayload.created_at = new Date().toISOString();
           annotationPayload.updated_at = new Date().toISOString();
 
           return {
-            taskId: currentTask?.id || null,
+            taskId,
+            fileId,
             annotation: annotationPayload,
           };
         }