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/subscription.py

@@ -0,0 +1,81 @@
+# -*- coding: utf-8 -*-
+"""
+跨平台消息互通插件订阅模块
+"""
+import json
+import asyncio
+from core.utils.logger import logger
+from core.managers.redis_manager import redis_manager
+from .config import config
+from .sender import forward_discord_to_qq, forward_qq_to_discord
+
+async def cross_platform_subscription_loop():
+    """Redis 跨平台消息订阅循环"""
+    if redis_manager.redis is None:
+        logger.warning("[CrossPlatform] Redis 未初始化，无法启动订阅")
+        return
+        
+    try:
+        pubsub = redis_manager.redis.pubsub()
+        await pubsub.subscribe(config.CROSS_PLATFORM_CHANNEL)
+        
+        logger.success("[CrossPlatform] 已订阅 Redis 跨平台频道")
+        
+        async for message in pubsub.listen():
+            if message["type"] == "message":
+                try:
+                    data = json.loads(message["data"])
+                    platform = data.get("platform", "")
+                    message_data = data.get("data", {})
+                    
+                    logger.info(f"[CrossPlatform] 收到跨平台消息: {platform}")
+                    
+                    if platform == "discord":
+                        await forward_discord_to_qq(
+                            discord_username=message_data.get("username", "Unknown"),
+                            discord_discriminator=message_data.get("discriminator", ""),
+                            content=message_data.get("content", ""),
+                            channel_id=message_data.get("channel_id", 0),
+                            attachments=message_data.get("attachments", [])
+                        )
+                    elif platform == "qq":
+                        await forward_qq_to_discord(
+                            qq_nickname=message_data.get("nickname", "Unknown"),
+                            qq_user_id=message_data.get("user_id", 0),
+                            group_name=message_data.get("group_name", ""),
+                            group_id=message_data.get("group_id", 0),
+                            content=message_data.get("content", ""),
+                            attachments=message_data.get("attachments", []),
+                            embed=message_data.get("embed")
+                        )
+                        
+                except json.JSONDecodeError as e:
+                    logger.error(f"[CrossPlatform] 解析消息失败: {e}")
+                except Exception as e:
+                    logger.error(f"[CrossPlatform] 处理跨平台消息失败: {e}")
+                    
+    except Exception as e:
+        logger.error(f"[CrossPlatform] 订阅循环异常: {e}")
+
+_subscription_task = None
+
+async def start_cross_platform_subscription():
+    """启动跨平台消息订阅"""
+    global _subscription_task
+    
+    if _subscription_task is None and config.ENABLE_CROSS_PLATFORM:
+        _subscription_task = asyncio.create_task(cross_platform_subscription_loop())
+        logger.success("[CrossPlatform] 跨平台消息订阅已启动")
+
+async def stop_cross_platform_subscription():
+    """停止跨平台消息订阅"""
+    global _subscription_task
+    
+    if _subscription_task:
+        _subscription_task.cancel()
+        try:
+            await _subscription_task
+        except asyncio.CancelledError:
+            pass
+        _subscription_task = None
+        logger.info("[CrossPlatform] 跨平台消息订阅已停止")