Remove F405 from Ruff ignore list

[arubittu]

Removes F405 from Ruff’s global ignore list by importing the names used in thunder.core.utils explicitly. The intentional wildcard imports stay in place so the module namespace does not change. The metadata wildcard import is replaced with explicit re-exports.

Addresses part of #2218.

Testing:

• ruff check . --select F405
• ruff check thunder/core/utils.py thunder/__init__.py
• pytest thunder/tests/test_core.py -q (161 passed)

[arubittu]

The pre-commit.ci failure comes from the pyupgrade hook crashing on Python 3.14 with TypeError: cannot use a bytes pattern on a string-like object. All other pre-commit hooks passed. This is the same issue addressed by #2824.

[arubittu]

I checked the failed CI logs:

• the stable PyTorch main and gradient suites pass
• the PyTorch nightly jobs treat the new inline_inbuilt_nn_modules deprecation warning as an error during test collection
• the notebook jobs stop during setup because pip cannot uninstall the Debian cryptography package without a RECORD file
• Transformer Engine cannot find a matching wheel and its source build expects the missing nccl_dev_cap.hpp PyTorch header
• Read the Docs imports a PyTorch build without Tensor.align_as
• pre-commit still hits the Python 3.14 pyupgrade crash addressed by fix(pre-commit.ci): pin pyupgrade to Python 3.13 to avoid crash on 3.14 #2824

These failures appear to come from CI images or dependency changes rather than this Ruff cleanup.