Merge branch 'main' into feature-shape-infrastructure

# Conflicts:
#	dotnet/AipsCore/Infrastructure/Persistence/Db/AipsDbContext.cs

dotnet/AipsCore/Application/Models/WhiteboardMembership/Command/CreateWhiteboardMembership/CreateWhiteboardMembershipCommand.cs

@@ -0,0 +1,13 @@
+using AipsCore.Application.Abstract.Command;
+using AipsCore.Domain.Models.WhiteboardMembership.ValueObjects;
+
+namespace AipsCore.Application.Models.WhiteboardMembership.Command.CreateWhiteboardMembership;
+
+public record CreateWhiteboardMembershipCommand(
+    string WhiteboardId, 
+    string UserId,
+    bool IsBanned,
+    bool EditingEnabled,
+    bool CanJoin,
+    DateTime LastInteractedAt)
+    : ICommand<WhiteboardMembershipId>;

dotnet/AipsCore/Application/Models/WhiteboardMembership/Command/CreateWhiteboardMembership/CreateWhiteboardMembershipCommandHandler.cs

@@ -0,0 +1,34 @@
+using AipsCore.Application.Abstract.Command;
+using AipsCore.Domain.Abstract;
+using AipsCore.Domain.Models.WhiteboardMembership.External;
+using AipsCore.Domain.Models.WhiteboardMembership.ValueObjects;
+
+namespace AipsCore.Application.Models.WhiteboardMembership.Command.CreateWhiteboardMembership;
+
+public class CreateWhiteboardMembershipCommandHandler : ICommandHandler<CreateWhiteboardMembershipCommand, WhiteboardMembershipId>
+{
+    private readonly IWhiteboardMembershipRepository _whiteboardMembershipRepository;
+    private readonly IUnitOfWork _unitOfWork;
+    
+    public CreateWhiteboardMembershipCommandHandler(IWhiteboardMembershipRepository whiteboardMembershipRepository, IUnitOfWork unitOfWork)
+    {
+        _whiteboardMembershipRepository = whiteboardMembershipRepository;
+        _unitOfWork = unitOfWork;
+    }
+    
+    public async Task<WhiteboardMembershipId> Handle(CreateWhiteboardMembershipCommand command, CancellationToken cancellationToken = default)
+    {
+        var whiteboardMembership = Domain.Models.WhiteboardMembership.WhiteboardMembership.Create(
+            command.WhiteboardId, 
+            command.UserId, 
+            command.IsBanned, 
+            command.EditingEnabled, 
+            command.CanJoin, 
+            command.LastInteractedAt);
+
+        await _whiteboardMembershipRepository.Save(whiteboardMembership, cancellationToken);
+        await _unitOfWork.SaveChangesAsync(cancellationToken);
+        
+        return whiteboardMembership.Id;
+    }
+}