{"ok":false,"checks":[{"name":"payment_mode","ok":true,"detail":"ads_only"},{"name":"persistent_store","ok":true,"detail":"file-backed store enabled"},{"name":"queue","ok":true,"detail":"inline"},{"name":"image_provider_credentials","ok":true,"detail":"Maizi API key required"},{"name":"image_storage","ok":true,"detail":"local public relay storage"},{"name":"ai_provider","ok":true,"detail":"https://www.maizitech.cn/v1/gpt-image-2"},{"name":"queue_backpressure","ok":true,"detail":"accepts up to 1000 queued jobs; downstream concurrency 1"},{"name":"wechat_subscribe_template","ok":true,"detail":"template not configured; popup disabled in local/mock mode"},{"name":"dev_openid","ok":true,"detail":"developer openid disabled"},{"name":"wechat_login","ok":false,"detail":"wechat login credentials missing"}]}