test(web): open workspace picker through the sidebar action

apps/web/tests/support.ts

@@ -208,7 +208,7 @@ export function probeFreePort(): Promise<number> {
  */
 export async function connectFreshWorkspace(page: Page, root: string, name = 'workspace'): Promise<void> {
   mkdirSync(join(root, name), { recursive: true })
-  await page.getByRole('textbox', { name: 'Choose workspace' }).click()
+  await page.getByRole('button', { name: 'Add workspace', exact: true }).click()
   const dialog = page.getByRole('dialog', { name: 'Select Workspace Directory' })
   await dialog.waitFor({ timeout: 10_000 })
   await dialog.getByRole('button', { name: 'Edit path' }).click()
@@ -234,7 +234,7 @@ export async function connectFreshWorkspace(page: Page, root: string, name = 'wo
  */
 export async function connectFreshWorkspaceZh(page: Page, root: string, name = 'workspace', modelAvailable = true): Promise<void> {
   mkdirSync(join(root, name), { recursive: true })
-  await page.getByRole('textbox', { name: '选择工作区' }).click()
+  await page.getByRole('button', { name: '添加工作区', exact: true }).click()
   const dialog = page.getByRole('dialog', { name: '选择工作区目录' })
   await dialog.waitFor({ timeout: 10_000 })
   await dialog.getByRole('button', { name: '编辑路径' }).click()