test(app): wait for send readiness in composer recall

The previous prompt can appear and clear its draft before the send acknowledgement arrives. Wait for Send to be enabled before pressing Enter so recall setup does not silently leave the next prompt unsent.

Co-authored-by: qwist1233-cpu <qwist1233@gmail.com>

packages/app/e2e/browser/composer-recall.spec.ts

@@ -3,7 +3,7 @@ import {
   composerLocator,
   expectComposerDraft,
   expectComposerVisible,
-  submitMessage,
+  fillComposerDraft,
   typeIntoFocusedComposer,
 } from "../support/helpers/composer";
 import { openAgentRoute, seedMockAgentWorkspace } from "../support/helpers/mock-agent";
@@ -12,8 +12,14 @@ function userMessages(page: Page) {
   return page.getByTestId("user-message");
 }
 
+async function sendDraftWhenReady(page: Page) {
+  await expect(page.getByRole("button", { name: "Send message", exact: true })).toBeEnabled();
+  await pressInComposer(page, "Enter");
+}
+
 async function sendAndWaitForMessage(page: Page, text: string, expectedCount: number) {
-  await submitMessage(page, text);
+  await fillComposerDraft(page, text);
+  await sendDraftWhenReady(page);
   await expect(userMessages(page)).toHaveCount(expectedCount, { timeout: 30_000 });
   await expectComposerDraft(page, "");
 }
@@ -49,7 +55,7 @@ test.describe("Composer recall", () => {
       await pressInComposer(page, "ArrowUp");
       await expectComposerDraft(page, "add tests for login");
 
-      await pressInComposer(page, "Enter");
+      await sendDraftWhenReady(page);
       await expect(userMessages(page)).toHaveCount(3, { timeout: 30_000 });
       await expect(userMessages(page).last()).toContainText("add tests for login");
     } finally {