Implements Phase 2 Task 7 - Telegram Confirmation UI:
- formatConfirmationMessage(): formats tool and args into readable message
- createConfirmationKeyboard(): creates approve/deny inline keyboard
- parseConfirmationCallback(): parses callback data from button clicks
- Full test coverage with vitest
All tests passing.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>