Generate SQL Queries from MySQL Schema

## Run this part only once
This section:
* loads a list of all tables from the database hosted on [db4free]({{ $env.WEBHOOK_URL }} 
* extracts the database schema for each table and adds the table name
* converts the schema into a binary JSON format
* saves the schema `./chinook_mysql.json` file locally

***Now you can use chat to "talk" to your data!*** 🎉