Improved handling of moonlight plugins during startup, minimized host project code and moved startup handling to core

Moonlight.Api/Startup/Startup.Base.cs

@@ -16,16 +16,19 @@ namespace Moonlight.Api.Startup;
 
 public partial class Startup
 {
-    private static void AddBase(WebApplicationBuilder builder)
+    private void AddBase(WebApplicationBuilder builder)
     {
         // Create the base directory
         Directory.CreateDirectory("storage");
 
-        // Hook up source-generated serialization
-        builder.Services.AddControllers().AddJsonOptions(options =>
-        {
-            options.JsonSerializerOptions.TypeInfoResolverChain.Add(SerializationContext.Default);
-        });
+        // Hook up source-generated serialization and add controllers
+        builder.Services
+            .AddControllers()
+            .AddApplicationPart(typeof(Startup).Assembly)
+            .AddJsonOptions(options =>
+            {
+                options.JsonSerializerOptions.TypeInfoResolverChain.Add(SerializationContext.Default);
+            });
 
         // Configure logging
         builder.Logging.ClearProviders();
@@ -53,10 +56,10 @@ public partial class Startup
 
         // Container Helper Options
         builder.Configuration.GetSection("Moonlight:ContainerHelper").Bind(builder.Configuration);
-        
+
         builder.Services.AddOptions<ContainerHelperOptions>().BindConfiguration("Moonlight:ContainerHelper");
         builder.Services.AddSingleton<ContainerHelperService>();
-        
+
         builder.Services.AddHttpClient("ContainerHelper", (provider, client) =>
         {
             var options = provider.GetRequiredService<IOptions<ContainerHelperOptions>>();