Fixed 51 ruff lint violations in scripts/validate_automation_tracking.py:
- Sorted imports per isort convention
- Replaced deprecated typing.List/Dict/Tuple/Optional with builtin equivalents
- Removed unused Optional import and unused local variable
- Fixed trailing whitespace, blank-line whitespace, and line-too-long errors
- Replaced dict.keys() with dict in membership tests
Removed tdd_expected_fail tag from Robot.Coverage Threshold test
'Noxfile Contains Coverage Threshold Constant' (issue #4305) because
the bug it tracked is now fixed (COVERAGE_THRESHOLD = 97 exists in
noxfile.py). The TDD listener was inverting the passing result to a
failure.