test(app): @ attachment smoke test

packages/app/e2e/prompt-mention.spec.ts

@@ -0,0 +1,21 @@
+import { test, expect } from "./fixtures"
+import { promptSelector } from "./utils"
+
+test("smoke @mention inserts file pill token", async ({ page, gotoSession }) => {
+  await gotoSession()
+
+  await page.locator(promptSelector).click()
+  await page.keyboard.type("@packages/app/package.json")
+
+  const suggestion = page.getByRole("button", { name: /packages\/app\/\s*package\.json/ }).first()
+  await expect(suggestion).toBeVisible()
+  await suggestion.hover()
+
+  await page.keyboard.press("Tab")
+
+  const pill = page.locator(`${promptSelector} [data-type="file"][data-path="packages/app/package.json"]`)
+  await expect(pill).toBeVisible()
+
+  await page.keyboard.type(" ok")
+  await expect(page.locator(promptSelector)).toContainText("ok")
+})