This commit switches the billing provider from Stripe to Lemon Squeezy. It also includes necessary modifications in the web app, billing gateway, and database to accommodate this change. Additionally, updates have been made to the checkout process, billing strategy, and relevant services and components.
Changed the billing provider in the `.env.development` file from Stripe to Lemon Squeezy. This requires adaptations at many levels: at the web app to load Lemon Squeezy's script in the checkout process, at the billing gateway to handle Lemon Squeezy calls, and in the database to reflect the current billing provider. The checkout process is now done using Lemon Squeezy Sessions and its billing strategy was adjusted accordingly. Billing-related components and services were also updated.
Updated the billing system's schema to change 'storeId' to a string type, and improved the cleanliness and readability of the code. Enhanced the logging system within the billing service for better tracking and debugging. In line with these changes, added corresponding error pages in the client side to handle any errors.
Updated various package dependencies including "next", "turbo" and "@kit" packages. Moved some dependencies to devDependencies for better project structure. This aims to optimize the dependency graph, reduce unnecessary installation of packages, and enhance the overall development environment.
Added implementation for various billing services with Lemon Squeezy. This includes processing of webhooks for order and subscription handling, verification of webhook signatures, and validating subscription statuses and order states. Additionally, types for order and subscription webhooks have been created.
New README files have been added for the packages dealing with the Stripe and Lemon Squeezy billing systems. They explain the purpose of the packages and detail what environment variables need to be set for development and production.
