Apply mechanical lint fixes for golangci-lint v2.12.2 rollout

Auto-remediate style-only findings (wsl_v5, nlreturn, noinlineerr,
modernize, intrange, perfsprint, usetesting, unconvert, errorlint,
gocritic, testifylint) and rename printf-style helpers to f-suffixed
names (goprintffuncname): ui.Writer message methods, cli.ReportErrorf,
database.Fatalf, vaultik stdoutf.

internal/cli/snapshot_restore.go

@@ -2,6 +2,7 @@ package cli
 
 import (
 	"context"
+	"errors"
 	"os"
 
 	"github.com/spf13/cobra"
@@ -70,6 +71,7 @@ Examples:
 // runRestore parses arguments and runs the restore operation through the app framework
 func runRestore(cmd *cobra.Command, args []string, opts *RestoreOptions) error {
 	snapshotID := args[0]
+
 	opts.TargetDir = args[1]
 	if len(args) > 2 {
 		opts.Paths = args[2:]
@@ -83,6 +85,7 @@ func runRestore(cmd *cobra.Command, args []string, opts *RestoreOptions) error {
 
 	// Use the app framework like other commands
 	rootFlags := GetRootFlags()
+
 	return RunWithApp(cmd.Context(), AppOptions{
 		ConfigPath: configPath,
 		LogOptions: log.LogOptions{
@@ -129,24 +132,29 @@ func buildRestoreInvokes(snapshotID string, opts *RestoreOptions) []fx.Option {
 							Verify:     opts.Verify,
 							SkipErrors: GetRootFlags().SkipErrors,
 						}
-						if err := app.Vaultik.Restore(restoreOpts); err != nil {
-							if err != context.Canceled {
+
+						err := app.Vaultik.Restore(restoreOpts)
+						if err != nil {
+							if !errors.Is(err, context.Canceled) {
 								log.Error("Restore operation failed", "error", err)
-								ReportError("Restore failed: %v", err)
+								ReportErrorf("Restore failed: %v", err)
 								os.Exit(1)
 							}
 						}
 
 						// Shutdown the app when restore completes
-						if err := app.Shutdowner.Shutdown(); err != nil {
+						err = app.Shutdowner.Shutdown()
+						if err != nil {
 							log.Error("Failed to shutdown", "error", err)
 						}
 					}()
+
 					return nil
 				},
 				OnStop: func(ctx context.Context) error {
 					log.Debug("Stopping restore operation")
 					app.Vaultik.Cancel()
+
 					return nil
 				},
 			})