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-live/api-smoke.spec.ts

@@ -0,0 +1,43 @@
+// LIVE smoke — API shape only (no model tokens). Hits the REAL sidecar's /v1/health and
+// /v1/providers to catch integration drift between the GUI's expectations and the backend's
+// responses. Skips cleanly when the backend is down, so it's safe to run anytime. No creds needed.
+import { expect, test } from "@playwright/test";
+import { backendFetch } from "./helpers";
+
+async function backendUp(): Promise<boolean> {
+  try {
+    const res = await backendFetch("/v1/health");
+    return res.ok;
+  } catch {
+    return false;
+  }
+}
+
+test("health reports ok with the fields the GUI reads", async () => {
+  test.skip(!(await backendUp()), "backend not running on :8765");
+  const s = await (await backendFetch("/v1/health")).json();
+  expect(s.status).toBe("ok");
+  // The GUI's boot reads these three off /v1/health.
+  expect(s).toHaveProperty("model");
+  expect(s).toHaveProperty("default_workspace");
+});
+
+test("providers list has the shape the Settings pane expects", async () => {
+  test.skip(!(await backendUp()), "backend not running on :8765");
+  const providers = await (await backendFetch("/v1/providers")).json();
+  expect(Array.isArray(providers)).toBe(true);
+  expect(providers.length).toBeGreaterThan(0);
+  // Each descriptor carries what ManageTabs renders: name/title/needs_key/fields/configured.
+  for (const p of providers) {
+    expect(p).toMatchObject({
+      name: expect.any(String),
+      title: expect.any(String),
+      needs_key: expect.any(Boolean),
+      configured: expect.any(Boolean),
+    });
+    expect(Array.isArray(p.fields)).toBe(true);
+  }
+  // The core providers Rohit tested should be present.
+  const names = providers.map((p: any) => p.name);
+  expect(names).toEqual(expect.arrayContaining(["openai", "anthropic"]));
+});