调整目录结构，将框架内容放到base里面

base/plugin_common/plugin_registry.py

@@ -0,0 +1,94 @@
+from typing import Dict, List, Optional, Type
+from base.plugin_common.plugin_interface import PluginInterface, PluginStatus
+
+
+class PluginRegistry:
+    """插件注册表，维护已加载插件的信息和状态"""
+    
+    _instance = None
+    
+    def __new__(cls):
+        """单例模式"""
+        if cls._instance is None:
+            cls._instance = super(PluginRegistry, cls).__new__(cls)
+            cls._instance._plugins = {}
+        return cls._instance
+    
+    def register(self, plugin: PluginInterface) -> bool:
+        """
+        注册插件
+        
+        Args:
+            plugin: 插件实例
+            
+        Returns:
+            注册是否成功
+        """
+        if plugin.name in self._plugins:
+            print(f"插件 {plugin.name} 已存在")
+            return False
+        
+        self._plugins[plugin.name] = plugin
+        return True
+    
+    def unregister(self, plugin_name: str) -> bool:
+        """
+        注销插件
+        
+        Args:
+            plugin_name: 插件名称
+            
+        Returns:
+            注销是否成功
+        """
+        if plugin_name not in self._plugins:
+            print(f"插件 {plugin_name} 不存在")
+            return False
+        
+        del self._plugins[plugin_name]
+        return True
+    
+    def get_plugin(self, plugin_name: str) -> Optional[PluginInterface]:
+        """
+        获取插件实例
+        
+        Args:
+            plugin_name: 插件名称
+            
+        Returns:
+            插件实例，不存在返回None
+        """
+        return self._plugins.get(plugin_name)
+    
+    def get_all_plugins(self) -> Dict[str, PluginInterface]:
+        """
+        获取所有插件
+        
+        Returns:
+            插件字典，键为插件名称，值为插件实例
+        """
+        return self._plugins.copy()
+    
+    def get_plugins_by_status(self, status: PluginStatus) -> List[PluginInterface]:
+        """
+        获取指定状态的插件
+        
+        Args:
+            status: 插件状态
+            
+        Returns:
+            插件列表
+        """
+        return [p for p in self._plugins.values() if p.status == status]
+    
+    def get_plugins_by_type(self, plugin_type: Type) -> List[PluginInterface]:
+        """
+        获取指定类型的插件
+        
+        Args:
+            plugin_type: 插件类型
+            
+        Returns:
+            插件列表
+        """
+        return [p for p in self._plugins.values() if isinstance(p, plugin_type)]