优化结构

internal/service/email.go

@@ -0,0 +1,20 @@
+package service
+
+import (
+	"context"
+	"kra/internal/biz"
+)
+
+type EmailService struct{ uc *biz.EmailUsecase }
+
+func NewEmailService(uc *biz.EmailUsecase) *EmailService { return &EmailService{uc: uc} }
+
+func (s *EmailService) Test(ctx context.Context) error { return s.uc.Test(ctx) }
+
+func (s *EmailService) Send(ctx context.Context, to, subject, body string) error {
+	return s.uc.Send(ctx, to, subject, body)
+}
+
+func (s *EmailService) Alert(ctx context.Context, subject, body string) error {
+	return s.uc.Alert(ctx, subject, body)
+}