- Add ProgressInfo dataclass for progress data
- Add ProgressMonitor class with:
- PROGRESS_PATTERNS for extraction (percentage, fraction, phase, completion)
- extract_progress() to find progress indicators in output
- should_send_update() with 60 second throttling
- create_progress_card() for Feishu card formatting
- Fix fraction pattern to allow content after fraction (e.g., [3/5 tasks])
- Fix should_send_update() to return False on first call
- Fix test assertions to use kwargs instead of positional args
All 7 tests pass for progress monitoring.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
