Add .nojekyll so GitHub Pages serves the prebuilt site as static

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: kmink3225

.nojekyll

@@ -212,7 +212,7 @@ kramdown:
       start_line: 1
 
 # Includes & excludes
-include: ["_pages"]
+include: ["_pages", ".nojekyll"]
 exclude:
   - al-folio-upgrade-report.md
   - bin/