f4a61269c2
- Add GroupSetupScenario: create supergroup, invite GmRelay bot, send /start, wait for reply, then delete the group - Extend TelegramUserClient with DeleteGroupAsync and channel cache - Update Program.cs to run the scenario with cleanup in finally - Update README status table and runner documentation Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>