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/postgres-bytea/readme.md

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+# postgres-bytea [![Build Status](https://travis-ci.org/bendrucker/postgres-bytea.svg?branch=master)](https://travis-ci.org/bendrucker/postgres-bytea)
+
+> Postgres bytea parser
+
+
+## Install
+
+```
+$ npm install --save postgres-bytea
+```
+
+
+## Usage
+
+```js
+var bytea = require('postgres-bytea');
+bytea('\\000\\100\\200')
+//=> buffer
+```
+
+## API
+
+#### `bytea(input)` -> `buffer`
+
+##### input
+
+*Required*  
+Type: `string`
+
+A Postgres bytea binary string.
+
+## License
+
+MIT © [Ben Drucker](http://bendrucker.me)