Vendor opencode source for docker build

opencode/packages/app/e2e/prompt/prompt-slash-open.spec.ts

@@ -0,0 +1,22 @@
+import { test, expect } from "../fixtures"
+import { promptSelector } from "../selectors"
+
+test("smoke /open opens file picker dialog", async ({ page, gotoSession }) => {
+  await gotoSession()
+
+  await page.locator(promptSelector).click()
+  await page.keyboard.type("/open")
+
+  const command = page.locator('[data-slash-id="file.open"]')
+  await expect(command).toBeVisible()
+  await command.hover()
+
+  await page.keyboard.press("Enter")
+
+  const dialog = page.getByRole("dialog")
+  await expect(dialog).toBeVisible()
+  await expect(dialog.getByRole("textbox").first()).toBeVisible()
+
+  await page.keyboard.press("Escape")
+  await expect(dialog).toHaveCount(0)
+})