剥离无效事件系统并收口插件统计链路

- 删除未被实际消费的事件系统实现与相关发布逻辑
- 将插件调用统计改为在机器人主链路中直接埋点记录
- 重构统计收集插件初始化与记录方式，移除事件总线依赖
- 同步更新工程优化文档中的性能与链路治理描述

base/plugin_common/event_system.py

@@ -1,85 +0,0 @@
-from enum import Enum, auto
-from typing import Dict, Any, Callable, List
-import threading
-
-
-class EventType(Enum):
-    """事件类型枚举"""
-    SYSTEM_STARTUP = auto()
-    SYSTEM_SHUTDOWN = auto()
-    PLUGIN_LOADED = auto()
-    PLUGIN_UNLOADED = auto()
-    MESSAGE_RECEIVED = auto()
-    MESSAGE_PROCESSED = auto()
-    CUSTOM_EVENT = auto()
-
-
-class EventSystem:
-    """事件系统，用于插件间通信"""
-    _instance = None
-    _lock = threading.Lock()
-    
-    def __new__(cls):
-        with cls._lock:
-            if cls._instance is None:
-                cls._instance = super(EventSystem, cls).__new__(cls)
-                cls._instance._subscribers = {}
-                cls._instance._initialized = False
-            return cls._instance
-    
-    def __init__(self):
-        if not self._initialized:
-            self._subscribers = {}
-            self._initialized = True
-    
-    def subscribe(self, event_type: EventType, callback: Callable[[Dict[str, Any]], None]) -> None:
-        """
-        订阅事件
-        
-        Args:
-            event_type: 事件类型
-            callback: 回调函数，接收事件数据
-        """
-        if event_type not in self._subscribers:
-            self._subscribers[event_type] = []
-        
-        if callback not in self._subscribers[event_type]:
-            self._subscribers[event_type].append(callback)
-    
-    def unsubscribe(self, event_type: EventType, callback: Callable[[Dict[str, Any]], None]) -> None:
-        """
-        取消订阅事件
-        
-        Args:
-            event_type: 事件类型
-            callback: 回调函数
-        """
-        if event_type in self._subscribers and callback in self._subscribers[event_type]:
-            self._subscribers[event_type].remove(callback)
-    
-    def publish(self, event_type: EventType, data: Dict[str, Any]) -> None:
-        """
-        发布事件
-        
-        Args:
-            event_type: 事件类型
-            data: 事件数据
-        """
-        if event_type in self._subscribers:
-            for callback in self._subscribers[event_type]:
-                try:
-                    callback(data)
-                except Exception as e:
-                    print(f"事件处理错误: {e}")
-    
-    def get_subscribers(self, event_type: EventType) -> List[Callable]:
-        """
-        获取事件订阅者
-        
-        Args:
-            event_type: 事件类型
-            
-        Returns:
-            订阅者列表
-        """
-        return self._subscribers.get(event_type, [])

base/plugin_common/plugin_manager.py

@@ -12,7 +12,6 @@ from base.plugin_common.plugin_interface import PluginInterface, PluginStatus
 from base.plugin_common.message_plugin_interface import MessagePluginInterface
 from base.plugin_common.scheduled_plugin_interface import ScheduledPluginInterface
 from base.plugin_common.plugin_registry import PluginRegistry
-from base.plugin_common.event_system import EventSystem, EventType
 from utils.decorator.async_job import async_job
 from wechat_ipad import WechatAPIClient
 
@@ -431,9 +430,6 @@ class PluginManager:
                         self._refresh_module_file_state(module_name)
                         # self.LOG.info(f"PluginManager：添加模块映射 {module_name} -> {display_name}")
 
-                        # 发布插件加载事件
-                        EventSystem().publish(EventType.PLUGIN_LOADED, {"plugin": plugin})
-
                         return plugin
                     else:
                         self.LOG.error(f"PluginManager：插件模块 {module_name} 的 get_plugin() 返回的不是有效的插件实例")
@@ -483,9 +479,6 @@ class PluginManager:
             self._refresh_module_file_state(module_name)
             # self.LOG.info(f"PluginManager：添加模块映射 {module_name} -> {display_name}")
 
-            # 发布插件加载事件
-            EventSystem().publish(EventType.PLUGIN_LOADED, {"plugin": plugin})
-
             return plugin
 
         except Exception as e:
@@ -544,9 +537,6 @@ class PluginManager:
         # 移除插件实例
         del self.plugins[display_name]
 
-        # 发布插件卸载事件
-        EventSystem().publish(EventType.PLUGIN_UNLOADED, {"plugin_name": display_name})
-
         return True
 
     def reload_plugin(self, name: str) -> Optional[PluginInterface]: