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-connection-string/esm/index.mjs

@@ -0,0 +1,8 @@
+// ESM wrapper for pg-connection-string
+import connectionString from '../index.js'
+
+// Re-export the parse function
+export default connectionString.parse
+export const parse = connectionString.parse
+export const toClientConfig = connectionString.toClientConfig
+export const parseIntoClientConfig = connectionString.parseIntoClientConfig