}
        final String thinkingBudget = config.getOrDefault(prefix + ".thinking.budget", null);
        if (thinkingBudget != null) {
            request.setThinkingBudget(Integer.parseInt(thinkingBudget));
        }
    }

    // --- Locale support methods ---

    /**
     * Gets the user's locale from the current request context.
     *