Add product variants API, deployment scripts, and documentation

- Add Node.js variant-api server with PostgreSQL integration
- Add new utility scripts for system verification and website status
- Update CI/CD workflow configuration
- Add color variant solution documentation
- Add product variants JavaScript support
- Update gitignore for new build artifacts

variant-api/node_modules/pg/lib/crypto/utils.js

@@ -0,0 +1,9 @@
+'use strict'
+
+const useLegacyCrypto = parseInt(process.versions && process.versions.node && process.versions.node.split('.')[0]) < 15
+if (useLegacyCrypto) {
+  // We are on an old version of Node.js that requires legacy crypto utilities.
+  module.exports = require('./utils-legacy')
+} else {
+  module.exports = require('./utils-webcrypto')
+}