test(oidc): cover discovery regression and consume fixed IdentityServer8 rc007

Add an application-level smoke test for /.well-known/openid-configuration
and a direct IResourceStore check so the IdentityServer8 mapper failure is
caught from the Yavsc side.

Bump HigginsSoft.IdentityServer8 packages to 8.1.0-pazofrc007, which
includes the EntityFramework mapper fix removing the failing AutoMapper
static initialization.

This closes the 500 on OIDC discovery and restores remoting/auth flows
that depend on discovery metadata.

src/Yavsc.Org.Tests/Smoke/AccountSmokeTests.cs

@@ -1,3 +1,6 @@
+using IdentityServer8.Stores;
+using Microsoft.Extensions.DependencyInjection;
+
 namespace Yavsc.Org.Tests.Smoke;
 
 /// <summary>
@@ -30,4 +33,27 @@ public class AccountSmokeTests : SmokeTestBase, IClassFixture<TestWebApplication
         using var client = _factory.CreateClient();
         await AssertResponds(client, "/signin");
     }
+
+    [Fact]
+    public async Task GetOpenIdConfiguration_returns_ok()
+    {
+        using var client = _factory.CreateClient();
+        var response = await GetRaw(client, "/.well-known/openid-configuration");
+        var payload = await response.Content.ReadAsStringAsync();
+
+        Assert.True(
+            response.IsSuccessStatusCode,
+            $"GET /.well-known/openid-configuration returned {(int)response.StatusCode} {response.StatusCode}. Body: {payload}");
+    }
+
+    [Fact]
+    public async Task ResourceStore_get_all_resources_does_not_throw()
+    {
+        using var scope = _factory.Services.CreateScope();
+        var resourceStore = scope.ServiceProvider.GetRequiredService<IResourceStore>();
+
+        var exception = await Record.ExceptionAsync(resourceStore.GetAllResourcesAsync);
+
+        Assert.Null(exception);
+    }
 }