Website restoration: Node.js backend, restored design, GitHub sync disabled

- Replaced broken .NET backend with Node.js/Express
- Restored original website design with purple gradient hero
- Updated homepage and shop pages with Bootstrap 5 responsive design
- Disabled GitHub remote sync - all code now stored locally only
- Created backup scripts and documentation
- All changes saved on Ubuntu server at /var/www/SkyArtShop

backend/node_modules/semver/ranges/intersects.js

@@ -0,0 +1,9 @@
+'use strict'
+
+const Range = require('../classes/range')
+const intersects = (r1, r2, options) => {
+  r1 = new Range(r1, options)
+  r2 = new Range(r2, options)
+  return r1.intersects(r2, options)
+}
+module.exports = intersects