clawhubadapter: OpenClaw 通道插件兼容修复（gateway 生命周期桥 + channelRuntime + deliver 事件式输出）

- manager/main.js：makeChannelRuntime（dispatchReplyWithBufferedBlockDispatcher 入站 + deliver 出站
  绑定 + typingCallbacks）、startChannels/stopChannels（gateway.startAccount fire-and-forget 生命周期
  桥、listAccountIds/resolveAccount 规范签名 cfg 传参）、tools/call 通道分支无 outbound 走 deliver
  事件式发送、SIGTERM 优雅停靠、console 输出重定向 stderr 防 JSON-RPC 流污染
- plugin.go：channel_input 改 InjectInputSync 同步注入取回复并经 CallTool 回发通道（修复
  InjectInterruptText 无 ResponseCh 致回复静默丢弃）；channel_status/channel_output 通知接入
- registry.go：channelStatus 状态缓存
- SDK：公共 IOInjector 增加 InjectInputSync(source, channel, text) string + ioAdapter 实现
- 生产验证：微信发消息 → pollLoop → dispatchReply → mock LLM 回文本 → deliver →
  ilink/bot/sendmessage status=200 送达

internal/sdk/plugin.go

@@ -118,6 +118,21 @@ func (a ioAdapter) InjectInterruptText(source, channel, text string) {
 	}
 }
 
+// InjectInputSync 同步注入输入并等待回复（阻塞直至 agent 处理完成），返回回复文本。
+func (a ioAdapter) InjectInputSync(source, channel, text string) string {
+	if a.iom == nil {
+		return ""
+	}
+	out := a.iom.InjectInputSyncTo(source, channel, "text", map[string]interface{}{
+		"content": text,
+	})
+	if out == nil {
+		return ""
+	}
+	reply, _ := out.Payload["content"].(string)
+	return reply
+}
+
 func (a ioAdapter) InjectText(source, channel, text string) {
 	if a.iom != nil {
 		a.iom.InjectInputTo(source, channel, "text", map[string]interface{}{"content": text})