Restore compact form of test_manager_scope_accuracy.py and harden ruff exemption

The file was supposed to be excluded from ruff format (format.exclude lives in
pyproject.toml), but explicit-file invocations (pre-commit etc.) bypass
format.exclude unless force-exclude is also set. The file got re-expanded
from ~900 to 3200 lines as a result.

- Re-compact via ruff format with line-length=250 and skip-magic-trailing-comma
- Set force-exclude=true so the existing format.exclude is honored even when
  the file is passed explicitly

Author: liquidsec