Add more validation results

[ppinchuk]

Add validation results from geothermal electricity web scraping as well as the old solar and wind validation pieces that were missing

[Copilot]

Pull request overview

This PR adds new validation reporting artifacts, including a geothermal web scraping validation notebook and shared utility functions for computing/plotting confusion matrices, along with updated validation documentation and README/About links.

Changes:

• New shared validation utility module (val_utils.py) factoring out compute_stats, plot_compass_confusion_matrix_from_data, and plot_compass_confusion_matrix for reuse across validation notebooks.
• New May_2026_Geothermal_webscraping_validation.ipynb notebook reporting COMPASS vs human document collection results (90% accuracy, 85.71% precision, 90% recall on 100 reviewed rows).
• Validation report expansion in docs/source/val/validation.rst (new Geothermal May 2026, Wind September, Solar August 2025 sections) plus README/About updates linking to the validation report and swapping Solar/Wind dataset submission IDs.

Reviewed changes

Copilot reviewed 4 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
support/validation/val_utils.py	New shared helpers for confusion matrix stats and plotting used by validation notebooks.
support/validation/May_2026_Geothermal_webscraping_validation.ipynb	New geothermal webscraping validation notebook with COMPASS/human scoring logic and plots.
docs/source/val/validation.rst	Adds geothermal, wind (Sept), and solar (Aug 2025) validation sections with images.
README.rst	Updates branding to COMPASS, adds validation report link, swaps Solar/Wind OpenEI dataset IDs.
docs/source/misc/about.rst	Adds a Validation section linking to the validation report.