enhance linting rules and update HTTP status codes in responses

logger/log.go

@@ -22,7 +22,7 @@ type Logger struct {
 	logger *log.Logger
 }
 
-func FromContext(ctx context.Context) Interface {
+func FromContext(ctx context.Context) *Logger {
 	logger, ok := ctx.Value(contextKey).(*Logger)
 	if !ok {
 		return nil
@@ -31,7 +31,7 @@ func FromContext(ctx context.Context) Interface {
 	return logger
 }
 
-func NewLogger(level log.Level) Interface {
+func NewLogger(level log.Level) *Logger {
 	l := log.New()
 	l.SetFormatter(&log.JSONFormatter{})
 	l.SetLevel(level)