Echoes level should not render when alerts have no children

[mjabascal10]

Acknowledgements

• I have searched (https://github.com/utmstack/UTMStack/issues) for past instances of this issue
• I have verified that my UTMStack version is up-to-date

Describe the bug

In the Threat Management → Adversary View section, the Sankey chart is misinterpreting the data structure when an alert has no child nodes (echoes).
The visualization still attempts to render the Echoes level even when no echoes exist for that alert.

Regression Issue

• Select this option if this issue appears to be a regression.

Expected Behavior

If an alert has no children/echoes, the Sankey chart should not render the Echoes level.
The graph should only display:

Adversary → Alerts

Current Behavior

The Sankey chart always tries to render all three levels:

Adversary → Alerts → Echoes

Even when the alert has no children, resulting in:

Empty Echo nodes

Incorrect or misleading links

A visual interpretation that suggests echoes exist when they do not

Reproduction Steps

Navigate to Threat Management → Adversary View

Load data where at least one alert has no echoes

Observe the Sankey chart

Notice that the Echoes level is still rendered

Possible Solution

No response

Additional Information/Context

No response

UTMStack Version

11.2.2

Operating System and version

Ubuntu

Hypervisor and Version | Server Vendor and Model

Browser and version

Google Chrome