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/boot.spec.ts

@@ -0,0 +1,75 @@
+// Cold-boot fixes (owner-hit 2026-07-23): the splash wears the real OpenWorker mark
+// (6-point star SVG, not the ✦ text glyph that read as another product's logo), and the
+// model picker recovers when the mount-time settings fetch loses the race against the
+// sidecar boot — previously "Loading models…" stuck until the user visited Settings.
+import { expect } from "@playwright/test";
+import { test } from "./fixtures";
+
+test("boot splash shows the OpenWorker star, not the sparkle glyph", async ({ page }) => {
+  // Hold health long enough to observe the splash.
+  await page.route("**/v1/health", async (route) => {
+    await new Promise((r) => setTimeout(r, 1500));
+    await route.fallback();
+  });
+  await page.goto("/");
+  const mark = page.locator(".boot-mark");
+  await expect(mark).toBeVisible();
+  await expect(mark.locator("svg")).toBeVisible(); // the Icon logo, not a text glyph
+  await expect(mark).not.toContainText("✦");
+  await expect(page.getByText(/Starting OpenWorker|Restoring your session/)).toBeVisible();
+});
+
+test("model picker recovers when settings fetches die during sidecar boot", async ({ page }) => {
+  // Real cold-start shape: EVERY request fails until the sidecar is up (health included),
+  // then everything answers. The mount-time settings fetches all lose that race and are
+  // swallowed — the post-health reload must populate the picker without a Settings visit.
+  let sidecarUp = false;
+  await page.route("**/v1/health", async (route) => {
+    await new Promise((r) => setTimeout(r, 700));
+    sidecarUp = true;
+    await route.fallback();
+  });
+  await page.route("**/v1/settings", async (route) => {
+    if (route.request().method() === "GET" && !sidecarUp) {
+      await route.abort();
+      return;
+    }
+    await route.fallback();
+  });
+  await page.goto("/");
+  await expect(page.locator(".dd").filter({ hasText: "Claude Opus 4.8" })).toBeVisible({
+    timeout: 10_000,
+  });
+  await expect(page.getByTestId("models-loading")).toHaveCount(0);
+});
+
+test("coworker picker recovers when the persona fetch dies during sidecar boot", async ({
+  page,
+}) => {
+  // Same cold-start shape as above, for /v1/personas (owner-hit 2026-08-13, packaged app):
+  // the mount-time fetch loses to the sidecar boot and its only other trigger is
+  // PERSONAS_CHANGED, so the composer's picker stayed empty for the WHOLE session — while
+  // Settings ▸ Coworkers (mounted later) listed everything and looked healthy.
+  let sidecarUp = false;
+  await page.route("**/v1/health", async (route) => {
+    await new Promise((r) => setTimeout(r, 700));
+    sidecarUp = true;
+    await route.fallback();
+  });
+  await page.route("**/v1/personas", async (route) => {
+    if (route.request().method() === "GET" && !sidecarUp) {
+      await route.abort();
+      return;
+    }
+    await route.fallback();
+  });
+
+  await page.goto("/");
+  await page.getByText("New session").first().click();
+  await page.getByTestId("coworker-chip").click();
+
+  // The menu must list real coworkers, not just its Import/Manage footer.
+  const menu = page.locator(".setup-menu");
+  await expect(menu.getByText("Security Coworker")).toBeVisible({ timeout: 10_000 });
+  await expect(menu.getByTestId("import-coworker")).toBeVisible();
+});