submodule对gitea不管用，所以直接拉了一份拉格兰

Lagrange.Core/Lagrange.OneBot/Program.cs

@@ -0,0 +1,46 @@
+using System.Reflection;
+using System.Runtime;
+using System.Text;
+using Lagrange.OneBot.Extensions;
+using Microsoft.Extensions.Hosting;
+
+namespace Lagrange.OneBot;
+
+internal abstract class Program
+{
+    public static void Main(string[] args)
+    {
+        string version = Assembly.GetAssembly(typeof(Program))?
+            .GetCustomAttribute<AssemblyInformationalVersionAttribute>()?
+            .InformationalVersion ?? "Unknown Lagrange.OneBot Version";
+        Console.WriteLine($"Lagrange.OneBot Version: {version}\n");
+
+        Console.OutputEncoding = Encoding.UTF8;
+        Console.InputEncoding = Encoding.UTF8;
+
+        GCSettings.LatencyMode = GCLatencyMode.Batch;
+
+        if (!File.Exists("appsettings.json"))
+        {
+            Console.WriteLine("No exist config file, create it now...");
+
+            var assm = Assembly.GetExecutingAssembly();
+            using var istr = assm.GetManifestResourceStream("Lagrange.OneBot.Resources.appsettings.json")!;
+            using var temp = File.Create("appsettings.json");
+            istr.CopyTo(temp);
+
+            istr.Close();
+            temp.Close();
+
+            Console.WriteLine("Please Edit the appsettings.json to set configs and press any key to continue");
+            Console.ReadKey(true);
+        }
+
+        Host.CreateApplicationBuilder()
+            .ConfigureLagrangeCore()
+            .ConfigureOneBot()
+            .Build()
+            .InitializeMusicSigner() // Very ugly (
+            .Run();
+    }
+}