feat: 收口文档桥接与 OnlyOffice/Sidebar 回归

- 为 documents.save/meta/content、blocks.patch 与 sidebar.dataset.list 补齐 Rust 协议映射、共享契约与桥接执行器

- 对齐 BlockNote、Mindmap、OnlyOffice 的保存/路由元信息，并补真实浏览器回归脚本与 OnlyOffice 部署基线

- 忽略 Rust 本地构建产物与 Harness 调试状态文件，避免临时产物进入仓库历史

wolai-frontend/src/app/api/sidebar/route.ts

@@ -6,6 +6,9 @@ import {
   buildDocumentQueryEnvelope,
   documentBridgeErrorResponse,
 } from "@/lib/documents/bridge";
+import {
+  buildSidebarDatasetListQueryPayload,
+} from "@/lib/sidebar-data";
 import { loadSidebarDataFromConvex } from "@/lib/server/sidebar-data";
 
 export const dynamic = "force-dynamic";
@@ -21,7 +24,6 @@ export async function GET(request: Request) {
       sidebarInitialData,
     } = await loadSidebarDataFromConvex({
       client,
-      userId: auth.userId,
       fallbackName: auth.email ?? auth.name ?? "我的空间",
       requestedWorkspaceId: workspaceIdParam,
     });
@@ -37,7 +39,7 @@ export async function GET(request: Request) {
       });
       const envelope = buildDocumentQueryEnvelope({
         name: "sidebar.dataset.list",
-        payload: { workspaceId: targetWorkspaceId },
+        payload: buildSidebarDatasetListQueryPayload(targetWorkspaceId),
       });
       if (!sidebarInitialData) {
         return NextResponse.json({ error: "暂无可用工作空间" }, { status: 404 });