- Updated `.env.example` to include a new `Telegram__ProxyUrl` setting for proxy configuration when accessing the Bot API, improving connectivity options. - Modified `Program.cs` to support proxy settings for the Telegram bot client, allowing for better handling of network restrictions. - Improved error handling in `TelegramBotHostedService` to ensure the bot can recover from network errors without crashing the application, implementing a retry mechanism with a delay. - Added `ProxyUrl` property to `TelegramOptions` for better configuration management.