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/esm/index.mjs

@@ -0,0 +1,20 @@
+// ESM wrapper for pg
+import pg from '../lib/index.js'
+
+// Re-export all the properties
+export const Client = pg.Client
+export const Pool = pg.Pool
+export const Connection = pg.Connection
+export const types = pg.types
+export const Query = pg.Query
+export const DatabaseError = pg.DatabaseError
+export const escapeIdentifier = pg.escapeIdentifier
+export const escapeLiteral = pg.escapeLiteral
+export const Result = pg.Result
+export const TypeOverrides = pg.TypeOverrides
+
+// Also export the defaults
+export const defaults = pg.defaults
+
+// Re-export the default
+export default pg