fix retorno do login microsoft

src/BCards.Web/Program.cs

@@ -13,6 +13,7 @@ using Microsoft.AspNetCore.Authentication.OAuth;
 using SendGrid;
 using BCards.Web.Middleware;
 using Microsoft.AspNetCore.Http.Features;
+using Microsoft.AspNetCore.HttpOverrides;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -178,6 +179,15 @@ builder.Services.AddRazorPages();
 
 var app = builder.Build();
 
+app.UseForwardedHeaders(new ForwardedHeadersOptions
+{
+    ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto,
+    // Permitir qualquer proxy (necessário para NGINX)
+    RequireHeaderSymmetry = false,
+    KnownNetworks = { },
+    KnownProxies = { }
+});
+
 // Configure the HTTP request pipeline.
 if (!app.Environment.IsDevelopment())
 {