chore: refactor packages/app files (#13236)

Co-authored-by: opencode-agent[bot] <opencode-agent[bot]@users.noreply.github.com>
Co-authored-by: Frank <frank@anoma.ly>

packages/app/e2e/files/file-open.spec.ts

@@ -1,15 +1,28 @@
 import { test, expect } from "../fixtures"
-import { openPalette, clickListItem } from "../actions"
+import { promptSelector } from "../selectors"
 
 test("can open a file tab from the search palette", async ({ page, gotoSession }) => {
   await gotoSession()
 
-  const dialog = await openPalette(page)
+  await page.locator(promptSelector).click()
+  await page.keyboard.type("/open")
+
+  const command = page.locator('[data-slash-id="file.open"]').first()
+  await expect(command).toBeVisible()
+  await page.keyboard.press("Enter")
+
+  const dialog = page
+    .getByRole("dialog")
+    .filter({ has: page.getByPlaceholder(/search files/i) })
+    .first()
+  await expect(dialog).toBeVisible()
 
   const input = dialog.getByRole("textbox").first()
   await input.fill("package.json")
 
-  await clickListItem(dialog, { keyStartsWith: "file:" })
+  const item = dialog.locator('[data-slot="list-item"][data-key^="file:"]').first()
+  await expect(item).toBeVisible({ timeout: 30_000 })
+  await item.click()
 
   await expect(dialog).toHaveCount(0)