feat: add PostgreSQL chat action with OpenAI integration

Author: Michael Liebmann

.env.example

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+# Learn more about the plugin server configuration at 
+# https://docs.connery.io/sdk/advanced/plugin-server#configuration
+
+API_KEY=123456

.gitignore

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+/node_modules
+/dist
+.env
+.DS_Store
+.cursorrules

LICENSE

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 MIT License
 
-Copyright (c) 2024 Connery
+Copyright (c) 2024
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

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-# postgresql
+# PostgreSQL
+
+Connery plugin to chat with a PostgreSQL database
+
+## Repository structure
+
+This repository contains the plugin's source code.
+
+| Path                            | Description                                                                                                                                          |
+| ------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------- |
+| [./src/index.ts](/src/index.ts) | **The entry point for the plugin.** It contains the plugin definition and references to all the actions.                                             |
+| [./src/actions/](/src/actions/) | **This folder contains all the actions of the plugin.** Each action is represented by a separate file with the action definition and implementation. |
+
+## Built using Connery SDK
+
+This plugin is built using [Connery SDK](https://github.com/connery-io/connery-sdk), the open-source SDK for creating AI plugins and actions.
+
+[Learn how to use the plugin and its actions.](https://docs.connery.io/sdk/guides/use-a-plugin)
+
+## Support
+
+If you have any questions or need help with this plugin, please create an issue in this repository.