refactor: 重构插件系统

pkg/plugin/errors.py

@@ -0,0 +1,24 @@
+from __future__ import annotations
+
+
+class PluginSystemError(Exception):
+    
+    message: str
+
+    def __init__(self, message: str):
+        self.message = message
+
+    def __str__(self):
+        return self.message
+    
+
+class PluginNotFoundError(PluginSystemError):
+    
+    def __init__(self, message: str):
+        super().__init__(f"未找到插件: {message}")
+
+
+class PluginInstallerError(PluginSystemError):
+
+    def __init__(self, message: str):
+        super().__init__(f"安装器操作错误: {message}")