fix: handle bare list annotations in construct_type

[paksh1]

Summary

Fix construct_type() so bare list annotations preserve list values instead of indexing into an empty typing.get_args(list) tuple and raising IndexError.

This mirrors the existing loose-construction behavior: if there is no inner type information to recursively construct, return the value as-is.

Repro

from openai._models import construct_type

construct_type(value=[{"hello": "world"}], type_=list)

Before this change, this raises:

IndexError: tuple index out of range

After this change, it returns the original list.

Tests

• python -m ruff format src\openai\_models.py tests\test_models.py
• python -m ruff check src\openai\_models.py tests\test_models.py
• $env:PYTHONPATH='src'; python -m pytest tests\test_models.py -q -o addopts=""

[marcuswood-oai]

Thank you for the contribution. The missing type arguments for bare list annotations are now handled in model construction by #3760, which is merged into main.

Closing this PR because the merged change resolves the same crash. Please use a release containing #3760 when available; the fix is not included in v3.11.0.