diff --git a/controller.go b/controller.go
index b72c32f..b83104b 100644
--- a/controller.go
+++ b/controller.go
@@ -1,16 +1,25 @@
 package contracts
 
 import (
+	"log/slog"
+
 	"git.fsdpf.net/go/req"
-	"github.com/samber/do/v2"
+)
+
+// 日志结构化字段的标准 key：LogKeyKind 标识控制器大类（Http/Cron/Job 等），
+// LogKeyComponent 标识具体是哪一个实例/类型。
+const (
+	LogKeyKind      = "kind"
+	LogKeyComponent = "component"
 )
 
 type Controller interface {
 	// 初始化
 	Init() error
 	// 获取 Container
-	Container() do.Injector
+	Container() Injector
 	// 派遣一个任务
 	Dispatch(job string, payload any, u req.User) error
+	// Logger 返回当前进程的默认 slog logger
+	Logger() *slog.Logger
 }
-