feat(web): add account workspaces and signed content flows

web/src/store/channels.ts

@@ -4,7 +4,7 @@ import type { ChannelInfo, CreateOptions } from '@/core-bridge/types';
 import type { ParsedChannelLink } from '@/lib/channelLink';
 
 interface ChannelsState {
-  /** 我的空间(原型:只在内存里,刷新即清空;真实实现存 IndexedDB,architecture §6) */
+  /** 服务端空间列表的界面投影，IndexedDB 提供离线缓存。 */
   list: ChannelInfo[];
   hydrated: boolean;
   /** 从链接进来、还没确认加入的空间;含密钥,只放内存 */
@@ -17,7 +17,6 @@ interface ChannelsState {
   hydrate: () => Promise<void>;
   refresh: () => Promise<void>;
   forget: (id: string) => Promise<void>;
-  loadDemo: () => void;
   setPendingLink: (link: ParsedChannelLink | null) => void;
   clearJustCreated: () => void;
 }
@@ -50,10 +49,6 @@ export const useChannels = create<ChannelsState>()((set) => ({
     await api.forget(id);
     set((s) => ({ list: s.list.filter((c) => c.id !== id) }));
   },
-  loadDemo: () => {
-    const demo = api.loadDemo?.() ?? [];
-    set((s) => ({ list: demo.reduce(upsert, s.list) }));
-  },
   setPendingLink: (link) => set({ pendingLink: link }),
   clearJustCreated: () => set({ justCreatedId: null }),
 }));