Other: Linter fixes after bumping linter version

internal/user/imap.go

@@ -14,9 +14,9 @@ import (
 )
 
 var (
-	defaultFlags          = imap.NewFlagSet(imap.FlagSeen, imap.FlagFlagged, imap.FlagDeleted)
-	defaultPermanentFlags = imap.NewFlagSet(imap.FlagSeen, imap.FlagFlagged, imap.FlagDeleted)
-	defaultAttributes     = imap.NewFlagSet()
+	defaultFlags          = imap.NewFlagSet(imap.FlagSeen, imap.FlagFlagged, imap.FlagDeleted) // nolint:gochecknoglobals
+	defaultPermanentFlags = imap.NewFlagSet(imap.FlagSeen, imap.FlagFlagged, imap.FlagDeleted) // nolint:gochecknoglobals
+	defaultAttributes     = imap.NewFlagSet()                                                  // nolint:gochecknoglobals
 )
 
 const (

internal/user/smtp.go

@@ -75,7 +75,6 @@ func (session *smtpSession) Mail(from string, opts smtp.MailOptions) error {
 	logrus.Info("SMTP session mail")
 
 	return session.apiAddrs.GetErr(func(apiAddrs []liteapi.Address) error {
-
 		switch {
 		case opts.RequireTLS:
 			return ErrNotImplemented

internal/user/types.go

@@ -1,12 +1,20 @@
 package user
 
-import "reflect"
+import (
+	"fmt"
+	"reflect"
+)
 
 func mapTo[From, To any](from []From) []To {
 	to := make([]To, 0, len(from))
 
 	for _, from := range from {
-		to = append(to, reflect.ValueOf(from).Convert(reflect.TypeOf(to).Elem()).Interface().(To))
+		val, ok := reflect.ValueOf(from).Convert(reflect.TypeOf(to).Elem()).Interface().(To)
+		if !ok {
+			panic(fmt.Sprintf("cannot convert %T to %T", from, *new(To)))
+		}
+
+		to = append(to, val)
 	}
 
 	return to

internal/user/user.go

@@ -22,8 +22,8 @@ import (
 )
 
 var (
-	EventPeriod = 20 * time.Second
-	EventJitter = 20 * time.Second
+	EventPeriod = 20 * time.Second // nolint:gochecknoglobals
+	EventJitter = 20 * time.Second // nolint:gochecknoglobals
 )
 
 type User struct {
@@ -31,9 +31,9 @@ type User struct {
 	client  *liteapi.Client
 	eventCh *queue.QueuedChannel[events.Event]
 
-	apiUser  *safe.Type[liteapi.User]
+	apiUser  *safe.Value[liteapi.User]
 	apiAddrs *safe.Slice[liteapi.Address]
-	settings *safe.Type[liteapi.MailSettings]
+	settings *safe.Value[liteapi.MailSettings]
 
 	userKR  *crypto.KeyRing
 	addrKRs map[string]*crypto.KeyRing
@@ -90,9 +90,9 @@ func New(ctx context.Context, encVault *vault.User, client *liteapi.Client, apiU
 		client:  client,
 		eventCh: queue.NewQueuedChannel[events.Event](0, 0),
 
-		apiUser:  safe.NewType(apiUser),
+		apiUser:  safe.NewValue(apiUser),
 		apiAddrs: safe.NewSlice(apiAddrs),
-		settings: safe.NewType(settings),
+		settings: safe.NewValue(settings),
 
 		userKR:  userKR,
 		addrKRs: addrKRs,