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

web/src/features/channel/ChannelSwitcher.tsx

@@ -8,12 +8,7 @@ import styles from './ThreadSidebar.module.css';
 export function ChannelSwitcher({ id, onCreate }: { id?: string; onCreate: () => void }) {
   const channels = useChannels((s) => s.list);
   const username = useAccount((s) => s.username);
-  const personal = useAccount((s) => s.personal);
   return <section className={styles.panel} aria-label="我的空间导航">
-    <button className={styles.identity} type="button" onClick={() => navigate('/')} aria-label="账号与设备设置">
-      {personal?.avatar ? <img src={personal.avatar} className={styles.avatar} alt="" /> : <Icon name="desktop" size={20} />}
-      <span>{personal?.displayName || username || '访客'}</span>
-    </button>
     <div className={styles.heading}><strong>空间</strong><Button variant="ghost" icon="edit" label="新建空间" disabled={!username} onClick={onCreate} /></div>
     <nav className={styles.channels} aria-label="空间列表">{channels.map((channel) => <button key={channel.id} type="button"
       className={`${styles.thread} ${channel.id === id ? styles.selected : ''}`} aria-current={channel.id === id ? 'page' : undefined}