太好了，我逐漸開始理解一切（並不）

srv/internal/application/application.go

@@ -1,14 +1,26 @@
 package application
 
 import (
+	"context"
+
 	"github.com/gin-gonic/gin"
+	"github.com/go-spring/spring-core/gs"
 )
 
 type Controller interface {
 	RegisterRoute()
 }
 
-func New() *gin.Engine {
-	app := gin.Default()
-	return app
+type AppPak struct {
+	core *gin.Engine
+}
+
+func (s *AppPak) ListenAndServe(sig gs.ReadySignal) error {
+	s.core = gin.Default()
+	s.core.Run("7777")
+	return nil
+}
+
+func (_ *AppPak) Shutdown(ctx context.Context) error {
+	return nil
 }