Summary

• add brigade work run --queue-next to queue the successful run's extracted next step
• dedupe equivalent pending task text for task add --from-next and queued next steps
• attach run/session metadata to tasks promoted from dogfood next steps

Verification

• .venv/bin/python -m pytest tests/test_work_cmd.py -q
• live smoke: duplicate work task add, work task show, work task done
• .venv/bin/python -m pytest -q
• PYTHONPATH=/home/clawdbot/repos/content-guard/src python3 -m content_guard scan . --policy /home/clawdbot/repos/content-guard/policies/public-repo.json
• git diff --check