Address CI lint + unit_tests failures on the namespace-lock test suite:
- Step file: drop unused imports (yaml, ExitStack, ValidationError) and
unused noqa directives flagged by ruff F401/RUF100; rewrite the
collected-errors list to use iterable unpacking (RUF005); register the
"I create an ActorLoader with initial actors from multiple namespaces"
step under both @given and @when so scenario 3 is no longer reported as
undefined; remove the dead _error_collector inner function the reviewer
flagged.
- Step regex fix: the concurrent-modifications step pattern ended with
'' (two single quotes) instead of `` (two backticks), so it never
matched the feature file's `(triggering ``discover()``)` literal.
- Test fixtures: add the required `description` field to _make_actor_yaml
in both the BDD step file and tests/actor/test_loader_list_actors_thread_safety.py
so ActorConfigSchema validation passes (previously every scenario
errored at discover() with "description: Field required").
- Concurrent worker names: collapse three-slash actor names like
"conc/ns{i % 2}/concurrent_{i}" to the single-slash form
"conc/concurrent_{i}" required by the schema's namespaced-name rule.
- Test file: drop unused `yaml` import and three unused F841 assignments
in _list_worker; apply ruff format.
- Feature file: switch the @issue_8660 TDD tag to @tdd_issue_8588 to
match the CONTRIBUTING.md tag convention for the bug issue this PR
closes.
ISSUES CLOSED: #8588
HAL9000
c69e960696