Fixed Worker API auth by rebuilding service after BCrypt hash update

Service required rebuild/restart to load updated appsettings.json
containing BCrypt-hashed admin password. Authentication now works
properly with secure password storage.

Author: MLidstrom

src/Castellan.Worker/Program.cs

@@ -235,9 +235,10 @@
 Console.WriteLine("Validating configuration options...");
 try
 {
-    var authOptions = scope.ServiceProvider.GetRequiredService<IOptionsMonitor<AuthenticationOptions>>();
-    var qdrantOptions = scope.ServiceProvider.GetRequiredService<IOptionsMonitor<QdrantOptions>>();
-    var pipelineOptions = scope.ServiceProvider.GetRequiredService<IOptionsMonitor<PipelineOptions>>();
+    using var configScope = builder.Services.BuildServiceProvider().CreateScope();
+    var authOptions = configScope.ServiceProvider.GetRequiredService<IOptionsMonitor<AuthenticationOptions>>();
+    var qdrantOptions = configScope.ServiceProvider.GetRequiredService<IOptionsMonitor<QdrantOptions>>();
+    var pipelineOptions = configScope.ServiceProvider.GetRequiredService<IOptionsMonitor<PipelineOptions>>();
 
     // Accessing .Value will trigger validation
     _ = authOptions.CurrentValue;