Restore shared client API snapshot prompt

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: stephentoub

nodejs/test/e2e/client_api.e2e.test.ts

@@ -40,8 +40,10 @@ describe("Client session management", async () => {
         const session = await client.createSession({ onPermissionRequest: approveAll });
         const sessionId = session.sessionId;
 
-        await session.sendAndWait({ prompt: "Say DELETE_SESSION_OK exactly." });
-        await waitFor(async () => (await client.listSessions()).some((s) => s.sessionId === sessionId));
+        await session.sendAndWait({ prompt: "Say OK." });
+        await waitFor(async () =>
+            (await client.listSessions()).some((s) => s.sessionId === sessionId)
+        );
         await session.disconnect();
         await client.deleteSession(sessionId);
 

test/snapshots/client_api/should_delete_session_by_id.yaml

@@ -5,6 +5,6 @@ conversations:
       - role: system
         content: ${system}
       - role: user
-        content: Say DELETE_SESSION_OK exactly.
+        content: Say OK.
       - role: assistant
-        content: DELETE_SESSION_OK
+        content: OK