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Channel Registry + Channel Switcher (optional) #42

Description

@zeevenn

Parent

#39 — PRD: AI Radio — Host-driven Channel experience with chat timeline

What to build

Channel Registry 提供内置频道列表;Channel Switcher 是一个可选的切换入口(非首屏),用户进入 app 后默认沉浸式进入当前 channel,无需手动选择。

Channel Registry(@flow/radio or apps/mobile):

  • getChannels() → Channel[]
  • getChannelById(id: string) → Channel | undefined
  • Ship at least three built-in Channels: 深夜电台, 晨间咖啡, 专注工作 — each with a name, a one-line descriptor, and a ChannelStyle

Channel Switcher(mobile app):

  • 不是独立的首屏,而是首页上的一个入口按钮(点击后弹出 BottomSheet 或导航到切换页面)
  • 显示 Channel 列表;每张卡片展示 name + descriptor
  • 切换 Channel 后返回 Radio Screen
  • 当前阶段只有一个默认 channel,此功能为可选增强

Default Channel 逻辑(未来):

  • 默认 channel 可基于时间/天气等上下文自动决定
  • 当前阶段:硬编码默认 channel,用户打开 app 直接进入沉浸式体验

Acceptance criteria

  • Channel Registry getChannels / getChannelById exported and typed against Channel from Shared types: Segment, Programme, ChatMessage #40
  • At least three built-in Channels with name and descriptor
  • Radio Screen 首页有一个 channel 切换入口(button → BottomSheet or navigation)
  • 切换 channel 后回到 Radio Screen 并应用新 channel
  • 用户进入 app 默认进入 Radio Screen,无需先选择 channel

Priority

Low — 当前阶段假设只有一个 channel,此 issue 为后续扩展准备。

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