feat: implement native AOT-friendly JwtTokenValidator to prevent sending expired bearer tokens in auth handlers

src/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs

@@ -4,6 +4,7 @@ using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.WebAssembly.Http;
 using Microsoft.Extensions.DependencyInjection;
 using NexusReader.Application.Abstractions.Services;
+using NexusReader.UI.Shared.Services;
 
 namespace NexusReader.Web.Client.Handlers;
 
@@ -48,7 +49,12 @@ public class AuthenticationHeaderHandler : DelegatingHandler
             if (tokenResult.IsSuccess && !string.IsNullOrEmpty(tokenResult.Value))
             {
                 originalToken = tokenResult.Value;
-                request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", originalToken);
+                
+                // Only attach the Bearer token if it is not expired
+                if (!JwtTokenValidator.IsExpired(originalToken))
+                {
+                    request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", originalToken);
+                }
             }
         }