chatbot

[JadeCara]

This pull request introduces a new chatbot module in Rust, including its dependencies, build configurations, and core functionalities. The most important changes are the addition of essential dependencies, the creation of a Makefile for project management, the implementation of the chatbot's main logic, and the setup of the main entry point for the application.

Dependencies and Configuration:

• module2/chatbot/Cargo.toml: Added the necessary dependencies for the chatbot, including reqwest, tokio, serde, serde_json, and dotenv.

Build and Project Management:

• module2/chatbot/Makefile: Created a Makefile to manage various tasks such as building, running, testing, linting, formatting, and version bumping of the project.

Core Functionality:

• module2/chatbot/src/chatbot.rs: Implemented the main logic for the chatbot, including functions for running the chat loop, calling the API, and handling user input and AI responses.

Module Setup:

• module2/chatbot/src/lib.rs: Added a module declaration for the chatbot.

Main Entry Point:

• module2/chatbot/src/main.rs: Set up the main function to initialize the environment, create an HTTP client, retrieve the API key, and start the chatbot loop.