refactor(plugin): move PluginObjKey to base package for consistency

This change centralizes the PluginObjKey constant in the base package to avoid duplication and ensure consistency across the codebase. The LuaPluginObjKey constant was removed from the plugin package as it is no longer needed.

Author: bytemain

internal/base/world.go

@@ -20,7 +20,8 @@ var (
 )
 
 const (
-	OsType   = "OS_TYPE"
-	ArchType = "ARCH_TYPE"
-	Runtime  = "RUNTIME"
+	PluginObjKey = "PLUGIN"
+	OsType       = "OS_TYPE"
+	ArchType     = "ARCH_TYPE"
+	Runtime      = "RUNTIME"
 )

internal/plugin/luai/plugin.go

@@ -15,10 +15,6 @@ import (
 	lua "github.com/yuin/gopher-lua"
 )
 
-const (
-	LuaPluginObjKey = "PLUGIN"
-)
-
 type LuaPlugin struct {
 	vm        *LuaVM
 	pluginObj *lua.LTable
@@ -230,7 +226,7 @@ func CreateLuaPlugin(pluginDirPath string, config *config.Config, runtimeVersion
 	}
 
 	vm.Instance.SetGlobal(base.Runtime, r)
-	pluginObj := vm.Instance.GetGlobal(LuaPluginObjKey)
+	pluginObj := vm.Instance.GetGlobal(base.PluginObjKey)
 	if pluginObj.Type() == lua.LTNil {
 		return nil, fmt.Errorf("plugin object not found")
 	}