feat(qqbot): 流式消息输出与架构重构

**流式消息**
- 新增 StreamSender 类，支持流式消息分片发送
- 实现消息队列异步处理，防止阻塞心跳
- 支持 C2C/Group 流式消息

**架构重构**
- 移除 clawdbot/moltbot 旧配置，统一为 qqbot
- 新增 upgrade-and-run.sh 一键升级脚本
- 重构 api/channel/gateway/outbound 模块
- 新增富媒体消息发送接口

index.ts

@@ -1,12 +1,15 @@
-import type { MoltbotPluginApi } from "clawdbot/plugin-sdk";
+import type { OpenClawPluginApi } from "openclaw/plugin-sdk";
+import { emptyPluginConfigSchema } from "openclaw/plugin-sdk";
+
 import { qqbotPlugin } from "./src/channel.js";
 import { setQQBotRuntime } from "./src/runtime.js";
 
 const plugin = {
   id: "qqbot",
-  name: "QQ Bot",
-  description: "QQ Bot channel plugin",
-  register(api: MoltbotPluginApi) {
+  name: "QQ Bot (Stream)",
+  description: "QQ Bot channel plugin with streaming message support",
+  configSchema: emptyPluginConfigSchema(),
+  register(api: OpenClawPluginApi) {
     setQQBotRuntime(api.runtime);
     api.registerChannel({ plugin: qqbotPlugin });
   },