- Added CheckUserPermissionQuery and CheckUserPermissionQueryHandler for permission validation.
- Introduced GetUserRolesQuery and GetUserRolesQueryHandler to retrieve user roles.
- Created IPermissionService interface and its implementation in PermissionService.
- Defined permission and role constants in PermissionDefinitions.
- Developed SetDefaultVatPercentageCommand and its handler for VAT configuration.
- Implemented GetCurrentVatPercentageQuery and handler to fetch current VAT settings.
- Added manual payment commands: CreateManualPayment, ApproveManualPayment, and RejectManualPayment with respective handlers and validators.
- Created GetManualPaymentsQuery and handler for retrieving manual payment records.
- Integrated gRPC services for manual payments with appropriate permission checks.
- Established Protobuf definitions for manual payment operations and metadata.
- Added UpdateDiscountProductCommandValidator for validating discount product updates.
- Created GetDiscountProductByIdQuery and its handler for retrieving discount product details by ID.
- Implemented GetDiscountProductsQuery and handler for fetching a list of discount products with filtering options.
- Developed AddToCartCommand and handler for adding products to the shopping cart.
- Implemented ClearCartCommand and handler for clearing the shopping cart.
- Created RemoveFromCartCommand and handler for removing items from the cart.
- Added UpdateCartItemCountCommand and handler for updating the quantity of items in the cart.
- Developed GetUserCartQuery and handler for retrieving the user's shopping cart details.
- Implemented Product Tag functionalities including assigning tags to products, creating, updating, and deleting tags.
- Added queries for fetching all tags and products by tag.
