Implement web app for logistics company using CodeIgniter3

[sweep-ai[bot]]

Description

This PR implements a web application for a logistics company using CodeIgniter3. The application allows customers to calculate price, checkout, track consignments, and provides an admin panel. The necessary files and directories have been created to set up the CodeIgniter3 framework. Controllers, views, and models have been implemented to handle the required functionalities.

Summary of Changes

• Created the necessary directories and files to set up the CodeIgniter3 framework.
• Implemented the Customer controller with functions for calculating price, checkout, and consignment tracking.
• Implemented the Admin controller with a function to load the admin panel.
• Created views for the customer and admin functionalities.
• Implemented the Customer_model and Admin_model to handle the business logic of the application.

Fixes #1.

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