体验优化
- 缩短 RSSHub 探测等待：并发探测多个实例，找到可用结果后停止其他请求；减少图标获取带来的等待，并及时响应取消操作。
- 明确显示探测结果：区分可订阅频道与诊断信息，展示实例及具体失败原因，同时改善深色模式下订阅候选的显示。
- 调整默认实例配置：新配置及恢复默认时采用新的实例顺序，官方实例默认关闭，可在「设置 → RSSHub」中启用；已有实例配置保持原有选择。
- 更新已读操作图标：阅读页和文章菜单使用勾选图标表示已读操作。
问题修复
- 修复曾经成功的实例被禁用或删除后，仍可能参与自动探测的问题。
- 修复清空实例列表后，默认实例被自动恢复的问题。
- 修复有效但暂时没有文章的订阅源被误判为失败，并触发实例切换的问题。
Experience Improvements
- Reduce RSSHub discovery waits: Probe multiple instances concurrently and stop other requests once a usable result is found. Reduce waits caused by icon fetching and respond promptly to cancellation.
- Clearer discovery results: Separate selectable channels from diagnostic information, show the instance and specific failure reason, and improve subscription candidates in dark mode.
- Updated default instances: New configurations and restored defaults use a revised instance order, with the official instance disabled by default. Enable it in Settings → RSSHub if needed; existing instance choices are preserved.
- Updated read-status icons: Use checkmark icons for read-status actions in the reader and article menus.
Bug Fixes
- Fix previously successful instances still being tried automatically after being disabled or deleted.
- Fix default instances being restored automatically after clearing the instance list.
- Fix valid feeds with no current articles being treated as failures and triggering instance switching.
Full Changelog: v1.3.1...v1.3.2