refactor(config): 七牛/微信密钥外置——AK/SK+微信AppID 入本地 app_config, domain/bucket 走远程配置
- app_config.json + AppConfig: qiniu_access_key/qiniu_secret_key/wechat_app_id/wechat_app_secret(扁平snake_case)
- RemoteConfig.VersionFields + audio_domain/audio_bucket(4层可携带), VersionDecision + audioDomain/audioBucket
- VersionResolver.resolve 复用 pickStr 解析 audioDomain/audioBucket(4层逐级回退)
- QiniuToken.uploadToken(accessKey,secretKey,bucket) 改传参,去掉硬编码常量
- AudioProvider.doUpload: AK/SK取本地配置, domain/bucket取远程配置(cfg.resolve), URL用远程domain
- WeChatApi.configure(appId) 注入AppID(去WX_APP_ID常量), EntryAbility.onCreate 从配置注入
- 更新 QiniuToken 单测传参
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
