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/session-intro.spec.ts

@@ -0,0 +1,88 @@
+// Start-screen template tasks (§27): three concrete rows, no icon tiles, no "Set me up" list.
+// Sub-lines are outcome-voiced; connection state lives in the dots + the trailing action.
+// Gated row (source not live for this session) → "Configure ›" expands the rail's Access
+// section (§32); ready row → click prefills the composer with the template stem.
+import { expect } from "@playwright/test";
+import { test } from "./fixtures";
+
+test("three rows, no Set-me-up; gated rows show Configure › and expand the rail's Access section", async ({
+  page,
+}) => {
+  await page.goto("/");
+  await expect(page.getByText("What should we produce?")).toBeVisible();
+
+  // Exactly the three template tasks; the old setup list is gone.
+  await expect(page.locator(".task-card")).toHaveCount(3);
+  await expect(page.getByText("Set me up (optional)")).toHaveCount(0);
+  await expect(page.getByText("Give me access to a folder")).toHaveCount(0);
+
+  // Fixture session state: slack + github live, hubspot not → the HubSpot row is gated,
+  // with the Configure affordance visible AT REST (no hover needed — it IS the row's action);
+  // the github+slack automation row has everything it needs.
+  const hs = page.getByTestId("intro-task-hubspot");
+  await expect(hs).toContainText("Configure ›");
+  await expect(hs.locator(".task-card-act")).toHaveCSS("opacity", "1");
+  await expect(page.getByTestId("intro-task-github-slack")).toContainText("Start →");
+
+  // Sub-lines describe the task's outcome, never connection state.
+  await expect(hs).toContainText("Sources, stages, and who needs follow-up");
+  await expect(hs).not.toContainText(/connect/i);
+
+  // Configure → the rail's Access section expands (§32), not a bespoke setup surface.
+  await hs.click();
+  await expect(page.getByRole("region", { name: "Session access" })).toBeVisible();
+  // No composer prefill happened on the gated click.
+  await expect(page.getByPlaceholder(/Ask the coworker/)).toHaveValue("");
+});
+
+test("ready rows reveal Start → on hover and prefill the composer", async ({ page }) => {
+  // Make every source live for this session (registered after the fixture's routes → wins).
+  await page.route("**/v1/sessions/*/connections*", (route) =>
+    route.fulfill({
+      contentType: "application/json",
+      body: JSON.stringify({
+        connected: [
+          { connector: "hubspot", enabled: true, detail: "" },
+          { connector: "github", enabled: true, detail: "" },
+          { connector: "slack", enabled: true, detail: "" },
+        ],
+        recommended: [],
+        attention: 0,
+      }),
+    }),
+  );
+  await page.goto("/");
+
+  const hs = page.getByTestId("intro-task-hubspot");
+  await expect(hs).toContainText("Start →");
+  // The action is hover-revealed on ready rows (hidden at rest).
+  await expect(hs.locator(".task-card-act")).toHaveCSS("opacity", "0");
+  await hs.hover();
+  await expect(hs.locator(".task-card-act")).toHaveCSS("opacity", "1");
+
+  await hs.click();
+  await expect(page.getByPlaceholder(/Ask the coworker/)).toHaveValue(/HubSpot leads/);
+
+  // Both sources live → the automation row is ready too; its prefill is the recipe stem.
+  const gh = page.getByTestId("intro-task-github-slack");
+  await expect(gh).toContainText("Start →");
+  await gh.click();
+  await expect(page.getByPlaceholder(/Ask the coworker/)).toHaveValue(/weekly progress report/);
+});
+
+test("folder task opens the inline add-folder form; adding a folder prefills the composer", async ({
+  page,
+}) => {
+  await page.goto("/");
+
+  // No shared folder yet (the fixture root is the primary scratch) → the row expands the form.
+  await page.getByTestId("intro-task-folder").click();
+  const path = page.getByPlaceholder("Choose or paste a folder path…");
+  await expect(path).toBeVisible();
+  await path.fill("/Users/me/Reports");
+  await page.getByRole("button", { name: "Add", exact: true }).click();
+
+  await expect(page.getByPlaceholder(/Ask the coworker/)).toHaveValue(
+    /Analyze the files in this folder/,
+  );
+});