add architecture skeleton

GymLogAI.TelegramBot/TelegramBotOptions.cs

@@ -0,0 +1,9 @@
+namespace GymLogAI.TelegramBot;
+
+public sealed record TelegramBotOptions
+{
+    public const string SectionName = "TelegramBot";
+
+    public string? BotToken { get; init; }
+    public int PollingTimeoutSeconds { get; init; } = 5;
+}