add tg bot project

GymLogAI.TgBot/TgBotServiceCollectionExtensions.cs

@@ -0,0 +1,19 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace GymLogAI.TgBot;
+
+public static class TgBotServiceCollectionExtensions
+{
+    public static IServiceCollection AddTgBot(this IServiceCollection services, IConfiguration configuration)
+    {
+        ArgumentNullException.ThrowIfNull(services);
+        ArgumentNullException.ThrowIfNull(configuration);
+
+        services
+            .AddOptions<TelegramBotOptions>()
+            .Bind(configuration.GetSection(TelegramBotOptions.SectionName));
+
+        return services;
+    }
+}