feat: record who created join codes and who added each node [CI]

backend/src/MoShiro.Backend.Api/Admin/AgentEndpoints.cs

@@ -133,7 +133,7 @@ public static class AgentEndpoints
     {
         string baseUrl = options.PublicUrl ?? $"{http.Request.Scheme}://{http.Request.Host}";
         Result<CreatedJoinToken> result = await tokens.CreateAsync(
-            new Application.CreateJoinTokenRequest(request.Note, request.Labels, request.AutoApprove ?? true, request.MaxUses ?? 1, request.ExpiresInHours ?? 24, request.Role ?? JoinTokenService.AgentRole), baseUrl, http.RequestAborted);
+            new Application.CreateJoinTokenRequest(request.Note, request.Labels, request.AutoApprove ?? true, request.MaxUses ?? 1, request.ExpiresInHours ?? 24, request.Role ?? JoinTokenService.AgentRole, http.GetPrincipal().Label), baseUrl, http.RequestAborted);
         if (!result.TryGet(out CreatedJoinToken? created, out FleetError? error))
         {
             return Problems.From(http, error);