Telegram: harden network retries and config

Co-authored-by: techboss <techboss@users.noreply.github.com>

src/telegram/bot.test.ts

@@ -126,6 +126,7 @@ vi.mock("grammy", () => ({
     on = onSpy;
     stop = stopSpy;
     command = commandSpy;
+    catch = vi.fn();
     constructor(
       public token: string,
       public options?: { client?: { fetch?: typeof fetch } },