Update .npmrc for npm public registry

Removed fergusbisset GitHub Packages reference. The package will
primarily use npm public registry. GitHub Packages configuration
is commented out as an alternative option.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: fergusbisset

.npmrc

@@ -1,7 +1,8 @@
 # Project-specific npm configuration
-# GitHub Packages registry configuration
-@fergusbisset:registry=https://npm.pkg.github.com/
 
-# Note: 'always-auth' is deprecated in npm 10+
-# Authentication is now handled via .npmrc auth tokens
-# If you need authentication, add: //npm.pkg.github.com/:_authToken=${GITHUB_TOKEN}
+# Primary: npm public registry (default for @nhsdigital scope)
+# No special configuration needed - uses default npm registry
+
+# Alternative: GitHub Packages (uncomment to use)
+# @nhsdigital:registry=https://npm.pkg.github.com/
+# //npm.pkg.github.com/:_authToken=${GITHUB_TOKEN}