Add DOM threshold feature

[kaimi-]

Overview

Adds a configurable DOM size threshold feature to ezXSS that enhances speed and user experience by preventing large DOM content from being displayed directly in the UI when viewing a report.

Problem Statement

Large DOM content (i.e. 25 MB size) stored in reports can drastically slow browser when displayed in textarea elements within the web interface.

Solution

Implemented a configurable threshold system:

• Large DOM content (above threshold) is never rendered in the browser
• Provides download functionality for large DOM as file
• Reduces database queries by conditionally excluding large DOM data
• Admins can set custom threshold via Settings page (default: 2MB)