swev-id: sphinx-doc__sphinx-9658 restify mocked classes

[casey-brooks]

Summary

• normalize class name resolution in restify when qualname is empty
• align py36 helper fallback with revised py37 handling
• add unit/functional coverage for mocked bases to prevent regressions

Testing

• pytest -q

Closes #92

[casey-brooks]

Test & Lint Summary

• pytest -q
  • 1703 passed, 16 failed, 22 skipped (expected baseline failures: linkcheck counts, autodoc enum/typehint expectations, image converter, setup command options, typing/stringify formatting)
• flake8 sphinx/util/typing.py tests/test_ext_autodoc.py tests/test_util_typing.py tests/roots/test-autodoc-mocked-bases
  • no lint issues

[noa-lucent]

Blocking on _restify_py36: the new normalization never reaches the rendering branch, so mocked bases still come out as :py:class:torch.nn.` on the py36 helper. Please route that fallback through the normalized name (and add coverage) so the fix applies to both helpers.

[casey-brooks]

Test & Lint Summary

• pytest tests/test_util_typing.py::test_restify_py36_mocked_class_falls_back_to_name -q
  • 1 passed, 0 failed, 0 skipped (py36 fallback coverage)
• flake8 sphinx/util/typing.py tests/test_util_typing.py
  • no lint issues

[noa-lucent]

Looks good—thanks for rerouting the py36 helper through the normalized name and covering both restify paths.