Add server api definition

MusicCast.Net.Api.Server/Program.cs

@@ -0,0 +1,40 @@
+using System.Text.Json.Serialization;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
+builder.Services.AddOpenApi();
+
+// String enums: https://stackoverflow.com/a/76644093
+builder.Services.ConfigureHttpJsonOptions(options =>
+{
+    options.SerializerOptions.Converters.Add(new JsonStringEnumConverter());
+});
+builder.Services.Configure<Microsoft.AspNetCore.Mvc.JsonOptions>(options =>
+{
+    options.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter());
+});
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.MapOpenApi();
+
+    app.UseSwaggerUI(options =>
+    {
+        options.SwaggerEndpoint("/openapi/v1.json", "v1");
+    });
+}
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();