4aa9f28f6e
- 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.