Project Red 2026 Update: Effective Number of Fractures Sensitivity [v3.13.4]

[softwareengineerprogrammer]

Description

Adds Number of Fractures sensitivity analysis: https://softwareengineerprogrammer.github.io/GEOPHIRES/Fervo_Project_Red.html#sensitivity-analysis-effective-number-of-fractures

See also:

1. Project Red 2026 Update [v3.13.3] #145
2. SAM-EM: Support all End-Use Options and Absorption Chiller Surface Application; Project Red 2026 Update [v3.13] NatLabRockies/GEOPHIRES-X#478

Testing & Verification

1. Unit tests added: N/A
2. Unit tests updated:
   1. Fervo_Project_Red-2026
   2. test_fervo_project_red_2026_results_against_reference_values
3. Manual testing: Describe any additional manual testing steps that were performed, such as running the change on a pre-existing data set you own.

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Change Checklist:

Observe the following checklist items if your change includes a new version (see versioning notes and version management docs).

Before merging:

1. Add a CHANGELOG entry: c5094fc

After merging:

1. Push tag(s) to GitHub (fork): git push fork refs/tags/v3.13.4: https://github.com/softwareengineerprogrammer/GEOPHIRES/releases/tag/v3.13.4

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Self-reviewed in #147