- Fix Rich Console line-wrapping breaking assertions in
context_unit_tests_steps.py: collapse newlines before checking for
filenames and overflow summaries (CI temp paths exceed 80 columns)
- Fix features.mocks import failure in database_integration.robot:
replace hardcoded sys.path '/app' with portable ${CURDIR}/..
- Fix --load-context help text assertions in load_context_test.robot:
merge stderr into stdout via stderr=STDOUT and remove duplicate test
- Add standalone dead_code nox session running vulture directly
- Rename security nox session to security_scan to match CI references
- Restore --exclude discovery to integration_tests nox session (lost
during merge conflict resolution)