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-array/readme.md

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+# postgres-array [![Build Status](https://travis-ci.org/bendrucker/postgres-array.svg?branch=master)](https://travis-ci.org/bendrucker/postgres-array)
+
+> Parse postgres array columns
+
+
+## Install
+
+```
+$ npm install --save postgres-array
+```
+
+
+## Usage
+
+```js
+var postgresArray = require('postgres-array')
+
+postgresArray.parse('{1,2,3}', (value) => parseInt(value, 10))
+//=> [1, 2, 3]
+```
+
+## API
+
+#### `parse(input, [transform])` -> `array`
+
+##### input
+
+*Required*  
+Type: `string`
+
+A Postgres array string.
+
+##### transform
+
+Type: `function`  
+Default: `identity`
+
+A function that transforms non-null values inserted into the array.
+
+
+## License
+
+MIT © [Ben Drucker](http://bendrucker.me)