fix(web): 清理测试运行警告

web/src/api/client-context.ts

@@ -5,7 +5,7 @@ import type { ApiClient } from './client'
 export const apiClientKey: InjectionKey<ApiClient> = Symbol('api-client')
 
 export function useApiClient(): ApiClient {
-  const client = inject(apiClientKey)
+  const client = inject(apiClientKey, null)
   if (!client) throw new Error('API_CLIENT_NOT_PROVIDED')
   return client
 }