fix: copy dotfiles (.nojekyll) in docs deployment (#58)

cp -r dist/* doesn't copy dotfiles, causing .nojekyll to be missing from gh-pages.
Use cp -r dist/. . instead to include all files including dotfiles.

Author: marcusrbrown

.github/workflows/docs.yaml

@@ -72,9 +72,9 @@ jobs:
           # Create or switch to gh-pages branch
           git checkout gh-pages 2>/dev/null || git checkout --orphan gh-pages
 
-          # Clean and copy new docs (preserve .git directory)
+          # Clean and copy new docs (preserve .git directory, include dotfiles)
           find . -mindepth 1 -not -path './.git' -not -path './.git/*' -delete
-          cp -r ../docs/dist/* .
+          cp -r ../docs/dist/. .
 
           # Commit and push if there are changes
           git add -A