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/database/module.go

@@ -34,11 +34,16 @@ func provideDatabase(lc fx.Lifecycle, cfg *config.Config) (*DB, error) {
 	lc.Append(fx.Hook{
 		OnStop: func(ctx context.Context) error {
 			log.Debug("Database module OnStop hook called")
-			if err := db.Close(); err != nil {
+
+			err := db.Close()
+			if err != nil {
 				log.Error("Failed to close database in OnStop hook", "error", err)
+
 				return err
 			}
+
 			log.Debug("Database closed successfully in OnStop hook")
+
 			return nil
 		},
 	})