🔧 CI failure on `main`: Python 3.11 on ubuntu-latest (test_failure)

[github-actions]

CI Build Failure — main branch

Job: Python 3.11 on ubuntu-latest — conclusion: failure

Category: test_failure

Suspected files:
none identified

Error lines:
see log snippet

Log snippet

---

TYPE: BUG_SIMPLE
BRANCH: main
CATEGORY: test_failure

Root cause (auto-analyzed):
The Python 3.11 on ubuntu-latest CI job on the main branch is failing.
Category: test_failure.

Suspected files:

• not identified — see log

Acceptance criteria:

• The Python 3.11 on ubuntu-latest CI job passes on main
• No regressions in the test suite
• PR references this issue (Fixes #{issue_number})

Instructions for Copilot:

1. Review the log snippet and error lines above
2. Identify the root cause in the suspected files
3. Apply the minimal fix needed
4. Add or update tests if a test is failing
5. Open a PR targeting main referencing this issue