AuthInfo: Revert #81013. Fix cache invalidation (#81050)

* Revert "Auth: Revert "Auth: Cache Auth Info" (#81013)"

This reverts commit ce84f7c540.

* fix cache invalidation during user takeover

* fix incomplete test

pkg/infra/remotecache/redis_storage.go

@@ -3,6 +3,7 @@ package remotecache
 import (
 	"context"
 	"crypto/tls"
+	"errors"
 	"fmt"
 	"strconv"
 	"strings"
@@ -93,7 +94,15 @@ func (s *redisStorage) Set(ctx context.Context, key string, data []byte, expires
 
 // GetByteArray returns the value as byte array
 func (s *redisStorage) Get(ctx context.Context, key string) ([]byte, error) {
-	return s.c.Get(ctx, key).Bytes()
+	item, err := s.c.Get(ctx, key).Bytes()
+	if err != nil {
+		if errors.Is(err, redis.Nil) {
+			return nil, ErrCacheItemNotFound
+		}
+		return nil, err
+	}
+
+	return item, nil
 }
 
 // Delete delete a key from session.