refactor: 移除全局单例、修复分层违规、统一错误与响应

internal/service/verification_service.go

@@ -26,16 +26,19 @@ const (
 
 // verificationService VerificationService的实现
 type verificationService struct {
+	cfg          *config.Config
 	redis        *redis.Client
 	emailService *email.Service
 }
 
 // NewVerificationService 创建VerificationService实例
 func NewVerificationService(
+	cfg *config.Config,
 	redisClient *redis.Client,
 	emailService *email.Service,
 ) VerificationService {
 	return &verificationService{
+		cfg:          cfg,
 		redis:        redisClient,
 		emailService: emailService,
 	}
@@ -44,8 +47,7 @@ func NewVerificationService(
 // SendCode 发送验证码
 func (s *verificationService) SendCode(ctx context.Context, email, codeType string) error {
 	// 测试环境下直接跳过，不存储也不发送
-	cfg, err := config.GetConfig()
-	if err == nil && cfg.IsTestEnvironment() {
+	if s.cfg.IsTestEnvironment() {
 		return nil
 	}
 
@@ -89,8 +91,7 @@ func (s *verificationService) SendCode(ctx context.Context, email, codeType stri
 // VerifyCode 验证验证码
 func (s *verificationService) VerifyCode(ctx context.Context, email, code, codeType string) error {
 	// 测试环境下直接通过验证
-	cfg, err := config.GetConfig()
-	if err == nil && cfg.IsTestEnvironment() {
+	if s.cfg.IsTestEnvironment() {
 		return nil
 	}
 
@@ -166,8 +167,5 @@ func (s *verificationService) sendEmail(to, code, codeType string) error {
 	}
 }
 
-// DeleteVerificationCode 删除验证码（工具函数，保持向后兼容）
-func DeleteVerificationCode(ctx context.Context, redisClient *redis.Client, email, codeType string) error {
-	codeKey := fmt.Sprintf("verification:code:%s:%s", codeType, email)
-	return redisClient.Del(ctx, codeKey)
-}
+// DeleteVerificationCode 已移除：重构后无调用方。如需删除验证码，请使用
+// VerificationService 实现内的 redis.Del 路径。