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- api_config.dart:API 基址单源(消除各处重复 _kApiUrl) - api_client.dart:统一鉴权 HTTP 客户端,401→AuthNotifier.refresh→重试一次, 错误统一 AuthApiException;+ 单测覆盖 401 刷新重试 - 模型 me/device/plan/usage_point(对齐后端 snake_case 契约) - account_api.dart:/v1/me、/v1/plans、/v1/me/devices(列表+删)、/v1/usage、 /v1/redeem、/v1/ads/unlock 封装 - auth_provider:注入 AuthApi + refresh();account_providers 装配 ApiClient/AccountApi - 顺带修复 onboarding 提交遗留的测试 stub(_NullTokenStore 缺 isOnboarded/markOnboarded) flutter analyze 0 error;114 tests passed。 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>