Add Preliminary CubeSat-Like Example for CARRE-Driven Capabilities

Goal

Create a preliminary CubeSat-like model example to showcase and test new CARRE-driven capabilities.

Scope

This issue should define and add a simple CubeSat-like example that exercises the relevant CARRE-driven workflow and provides a starting point for future refinement.

The initial model should include:

• A CubeSat-like geometry.
• One or more representative sensitive volumes.
• Energy-deposition scoring in the sensitive volume as an initial proxy for downstream electronics-effect analysis.
• Outputs suitable for later analysis of SEE or related electronics effects.

Acceptance Criteria

• A preliminary CubeSat-like model is added as an example.
• The example includes a representative sensitive volume.
• Energy deposition in the sensitive volume is scored as the initial proxy quantity.
• The example exercises the intended CARRE-driven capabilities.
• Basic instructions are provided for running the example.
• Follow-up needs or limitations are documented.

Notes

This is intentionally bare-bones. The assignee should expand the model details, expected behavior, and verification needs before implementation.