auth clean up

Distribution/Features/Auth/AuthServiceClient.cs

@@ -0,0 +1,20 @@
+namespace Distribution.Features.Auth;
+
+/// <summary>
+/// Typed HttpClient that proxies requests to the external Auth Service.
+/// Registered via AddHttpClient&lt;AuthServiceClient&gt; in Program.cs.
+/// BaseAddress is configured from AuthService:BaseUrl in appsettings.json.
+///
+/// TODO: Implement methods once Auth Service contract is agreed.
+/// </summary>
+public class AuthServiceClient(HttpClient http) : IAuthServiceClient
+{
+    // TODO: implement proxy methods, e.g.:
+    //
+    // public async Task<AuthServiceResponse?> LoginAsync(LoginRequest request, CancellationToken ct)
+    // {
+    //     var response = await http.PostAsJsonAsync("/TODO_AUTH_SERVICE_LOGIN_PATH", request, ct);
+    //     if (!response.IsSuccessStatusCode) return null;
+    //     return await response.Content.ReadFromJsonAsync<AuthServiceResponse>(ct);
+    // }
+}