fix(regression-test): target the selected agent row

Signed-off-by: kangfenmao <kangfenmao@qq.com>

Author: kangfenmao

tests/e2e/cherry-regression/agents.ts

@@ -20,8 +20,7 @@ export async function selectAgent(page: Page, name: string): Promise<void> {
 export async function startNewAgentTask(page: Page, name: string): Promise<void> {
   await selectAgent(page, name)
   const agentView = page.locator('[data-ui="agent.view"]:visible').first()
-  const agent = agentView.getByText(name, { exact: true }).first()
-  const agentRow = agentView.getByRole('option').filter({ has: agent }).first()
+  const agentRow = agentView.getByRole('option').filter({ hasText: name }).first()
   await agentRow.hover()
   const newTask = agentRow.getByRole('button', { name: 'New task', exact: true })
   await expect(newTask).toBeVisible()