Remove unsolicited draft controls and persistent guidance

assets/dashboard/src/pages/communication.tsx

@@ -89,7 +89,7 @@ export default function Communication() {
         </article>) : <div className="flex h-full items-center justify-center text-sm text-muted-foreground">{known ? '有什么想了解的？从这里开始交流。' : '会话准备好后，即可在这里交流。'}</div>}
       </div>
       <form onSubmit={send} className="shrink-0 border-t p-3 sm:px-8">
-        <p role="status" className="mb-2 text-xs text-muted-foreground">{local.error || '草稿保存在此浏览器，可在重新登录后恢复。'}</p><Button type="button" variant="ghost" size="sm" disabled={sending} onClick={() => local.clear(false,true)}>清除本地沟通草稿</Button><Textarea id="message" aria-label="输入消息" value={text} disabled={sending} onChange={e => local.save({...local.value,text:e.target.value})} placeholder="输入你的问题或想法…" maxLength={32000} rows={2} required className="resize-none border-0 shadow-none focus-visible:ring-0" />
+        {local.error && <p role="status" className="mb-2 text-xs text-destructive">{local.error}</p>}<Textarea id="message" aria-label="输入消息" value={text} disabled={sending} onChange={e => local.save({...local.value,text:e.target.value})} placeholder="输入你的问题或想法…" maxLength={32000} rows={2} required className="resize-none border-0 shadow-none focus-visible:ring-0" />
         <div className="mt-2 flex items-center justify-between gap-3"><p className="text-xs text-muted-foreground">{!known ? '正在准备会话' : session?.connection === 'connected' ? '' : '暂时离线，消息会保存并等待回复。'}</p><Button type="submit" disabled={!known || !local.ready || sending || !text.trim()}><Send />{sending ? '发送中…' : '发送'}</Button></div>
       </form>
     </section>