feat: Implement user permission checks and manual payment functionalities

- 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.

src/BackOffice.BFF.Application/ManualPaymentCQ/Queries/GetManualPayments/GetManualPaymentsQuery.cs

@@ -0,0 +1,15 @@
+using MediatR;
+
+namespace BackOffice.BFF.Application.ManualPaymentCQ.Queries.GetManualPayments;
+
+public class GetManualPaymentsQuery : IRequest<GetManualPaymentsResponseDto>
+{
+    public int PageNumber { get; set; } = 1;
+    public int PageSize { get; set; } = 10;
+    public long? UserId { get; set; }
+    public int? Status { get; set; }
+    public int? Type { get; set; }
+    public long? RequestedBy { get; set; }
+    public bool OrderByDescending { get; set; } = true;
+    public string? ReferenceNumber { get; set; }
+}