[users] improve logging

Author: capcom6

internal/sms-gateway/users/service.go

@@ -2,8 +2,10 @@ package users
 
 import (
 	"context"
+	"errors"
 	"fmt"
 
+	"github.com/android-sms-gateway/server/pkg/cache"
 	"github.com/android-sms-gateway/server/pkg/crypto"
 	"go.uber.org/zap"
 )
@@ -70,6 +72,8 @@ func (s *Service) Login(ctx context.Context, username, password string) (*User,
 	cachedUser, err := s.cache.Get(ctx, username, password)
 	if err == nil {
 		return cachedUser, nil
+	} else if !errors.Is(err, cache.ErrKeyNotFound) {
+		s.logger.Warn("failed to get user from cache", zap.String("username", username), zap.Error(err))
 	}
 
 	user, err := s.users.GetByID(username)