fix(experimental): declare react as a build input of the agent team client
@deepseek-ai/dsh-experimental-client-ui-agent-team listed react under
dependencies, which the shipped client packages never do: react reaches the
browser through the web build. Now that the agent team web profile is an
optional bundle of @deepseek-ai/dsh, that dependency pulled react into the
npm install layout, where verify-npm-install-layout rejects it.