Schedule consultation bridges on demand and preserve delivery evidence

assets/dashboard/src/components/message-delivery.tsx

@@ -0,0 +1,10 @@
+import type { Message } from '@/lib/types'
+import { messageDelivery } from '@/lib/message-delivery'
+export function MessageDelivery({ message, messages }: { message: Message; messages: Message[] }) {
+  if (message.source !== 'human') return null
+  const delivery = messageDelivery(message, messages)
+  return <details className="mt-2 text-xs opacity-80" open={delivery.waiting || undefined}>
+    <summary className="cursor-pointer select-none">{delivery.label}</summary>
+    <p className="mt-1 leading-5">{delivery.reason || (delivery.stage === 'replied' ? '已收到此消息的回复。' : delivery.stage === 'delivered' ? '已进入会话，等待处理与回复。' : delivery.stage === 'processing' ? '会话正在处理，尚未收到回复。' : delivery.stage === 'queued' ? '已在服务端保存，等待会话处理。' : '已保存，尚未确认送达。')}</p>
+  </details>
+}