refactor: 移除全局单例、修复分层违规、统一错误与响应

internal/service/captcha_service.go

@@ -72,13 +72,15 @@ type RedisData struct {
 
 // captchaService CaptchaService的实现
 type captchaService struct {
+	cfg    *config.Config
 	redis  *redis.Client
 	logger *zap.Logger
 }
 
 // NewCaptchaService 创建CaptchaService实例
-func NewCaptchaService(redisClient *redis.Client, logger *zap.Logger) CaptchaService {
+func NewCaptchaService(cfg *config.Config, redisClient *redis.Client, logger *zap.Logger) CaptchaService {
 	return &captchaService{
+		cfg:    cfg,
 		redis:  redisClient,
 		logger: logger,
 	}
@@ -157,8 +159,7 @@ func (s *captchaService) Generate(ctx context.Context) (masterImg, tileImg, capt
 // Verify 验证验证码
 func (s *captchaService) Verify(ctx context.Context, dx int, captchaID string) (bool, 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 true, nil
 	}
 
@@ -197,8 +198,7 @@ func (s *captchaService) Verify(ctx context.Context, dx int, captchaID string) (
 // CheckVerified 检查验证码是否已验证（仅检查captcha_id）
 func (s *captchaService) CheckVerified(ctx context.Context, captchaID string) (bool, 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 true, nil
 	}
 
@@ -216,8 +216,7 @@ func (s *captchaService) CheckVerified(ctx context.Context, captchaID string) (b
 // ConsumeVerified 消耗已验证的验证码（注册成功后调用）
 func (s *captchaService) ConsumeVerified(ctx context.Context, captchaID string) error {
 	// 测试环境下直接返回成功
-	cfg, err := config.GetConfig()
-	if err == nil && cfg.IsTestEnvironment() {
+	if s.cfg.IsTestEnvironment() {
 		return nil
 	}