feat: OpenMesh 基础平台与 MD/PDF 转换技能

- 后端: coworker 智能体框架, WS API, 文件上传, 附件处理
- 前端: Open WebUI, 文件全量走 upload API (含 MD/TXT/JSON 等文本类)
- 技能: md-to-office (pandoc + wkhtmltopdf)
- 修复: 上传文件路径丢失, Agent 搜索浪费, 输出文件跑到 uploads/
- 打包: PyInstaller one-dir, 预打包 pandoc/wkhtmltopdf/chromium

surfaces/gui/e2e/cloud-status-pending.spec.ts

@@ -0,0 +1,53 @@
+// FB-013: a signed-in user opened the rail's connect pane and was told to sign in —
+// the rail's single cloud-status fetch rendered PENDING (and any failure) as signed-out,
+// with nothing that could ever flip it back. Contract now: unknown status shows a neutral
+// "checking" line, never the sign-in ask; the pane polls while open; and completing
+// sign-in from the inline prompt flips the pane itself (no other section's poll needed).
+import { expect } from "@playwright/test";
+import { test } from "./fixtures";
+
+const openGmailPane = async (page: import("@playwright/test").Page) => {
+  await page.goto("/");
+  await page.getByText("Draft the launch note").first().click();
+  await page.getByTestId("access-toggle").click();
+  await page.getByTestId("access-add-source").click();
+  await page.getByTestId("access-add-gmail").click();
+};
+
+test("pending status shows 'checking', never the sign-in ask; resolves to one-click", async ({
+  page,
+}) => {
+  // Hold every /v1/cloud/status response (test routes outrank the fixture's) — the user
+  // IS signed in, the app just doesn't know yet.
+  let release!: () => void;
+  const gate = new Promise<void>((r) => (release = r));
+  await page.route("**/v1/cloud/status", async (route) => {
+    await gate;
+    await route.fulfill({
+      json: { signed_in: true, account: "her@example.com", user_id: "u1", telemetry_enabled: true },
+    });
+  });
+
+  await openGmailPane(page);
+  await expect(page.getByTestId("cloud-status-pending")).toBeVisible();
+  await expect(page.getByTestId("inline-cloud-sign-in")).toHaveCount(0);
+
+  release();
+  await expect(page.getByRole("button", { name: "Connect Gmail with one click" })).toBeVisible();
+  await expect(page.getByTestId("cloud-status-pending")).toHaveCount(0);
+});
+
+test("signing in from the rail prompt flips the pane to one-click", async ({ page }) => {
+  // Fixture default: signed out — the resolved signed-out state legitimately asks.
+  await openGmailPane(page);
+  const ask = page.getByTestId("inline-cloud-sign-in");
+  await expect(ask).toBeVisible();
+  await expect(page.getByTestId("cloud-status-pending")).toHaveCount(0);
+
+  // The mock login flips CLOUD_STATE instantly; the inline button's own post-login poll
+  // plus the CLOUD_CHANGED broadcast must flip THIS pane without any other page open.
+  await ask.click();
+  await expect(page.getByRole("button", { name: "Connect Gmail with one click" })).toBeVisible({
+    timeout: 5_000,
+  });
+});