feat: 新增跨平台消息互通插件及适配器优化

refactor(discord_adapter): 优化音频处理与心跳机制
feat(plugins/discord-cross): 实现QQ与Discord消息互通功能
fix(events/base): 添加platform字段到基础事件模型

plugins/discord-cross/__init__.py

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+"""
+跨平台消息互通插件入口
+"""
+import asyncio
+from core.utils.logger import logger
+from .config import config
+from .subscription import start_cross_platform_subscription, stop_cross_platform_subscription
+from .handlers import *
+
+# 插件加载时自动启动和加载配置
+try:
+    asyncio.create_task(config.reload())
+except Exception as e:
+    logger.error(f"[CrossPlatform] 重新加载配置失败: {e}")
+
+try:
+    asyncio.create_task(start_cross_platform_subscription())
+except Exception as e:
+    logger.error(f"[CrossPlatform] 启动订阅失败: {e}")
+
+def cleanup():
+    """清理资源"""
+    asyncio.create_task(stop_cross_platform_subscription())