- Replace CSS class-based scanning with [data-testid='conversation-view'] + [data-step-index] traversal
- New extractCleanStepText(): clone-and-strip buttons/SVG/icons before text extraction
- New extractStepContext(): step-container-aware context with header + code block
- NOISE_RE: block Material icon names, button labels, UI artifacts
- Auto DOM structure dump on first conversation-view detection
- Enhanced deep-inspect with step element + button inventory
- known-issues: document AG Native SDK API incompatibility