RuntimeError: Couldn't install clip.

When running `run.bat`, I get this error
```
Installing clip
Traceback (most recent call last):
File "Z:\docker\webui_forge_cu121_torch231\webui\launch.py", line 51, in
main()
File "Z:\docker\webui_forge_cu121_torch231\webui\launch.py", line 39, in main
prepare_environment()
File "Z:\docker\webui_forge_cu121_torch231\webui\modules\launch_utils.py", line 443, in prepare_environment
run_pip(f"install {clip_package}", "clip")
File "Z:\docker\webui_forge_cu121_torch231\webui\modules\launch_utils.py", line 153, in run_pip
return run(f'"{python}" -m pip {command} --prefer-binary{index_url_line}', desc=f"Installing {desc}", errdesc=f"Couldn't install {desc}", live=live)
File "Z:\docker\webui_forge_cu121_torch231\webui\modules\launch_utils.py", line 125, in run
raise RuntimeError("\n".join(error_bits))
RuntimeError: Couldn't install clip.
Command: "Z:\docker\webui_forge_cu121_torch231\system\python\python.exe" -m pip install https://github.com/openai/CLIP/archive/d50d76daa670286dd6cacf3bcd80b5e4823fc8e1.zip --prefer-binary
Error code: 1
stdout: Collecting https://github.com/openai/CLIP/archive/d50d76daa670286dd6cacf3bcd80b5e4823fc8e1.zip
Using cached https://github.com/openai/CLIP/archive/d50d76daa670286dd6cacf3bcd80b5e4823fc8e1.zip (4.3 MB)
Preparing metadata (setup.py): started
Preparing metadata (setup.py): finished with status 'error'

stderr: error: subprocess-exited-with-error

python setup.py egg_info did not run successfully.
exit code: 1

[10 lines of output]
Traceback (most recent call last):
File "", line 2, in
File "", line 14, in
File "", line 1027, in _find_and_load
File "", line 1006, in _find_and_load_unlocked
File "", line 688, in _load_unlocked
File "", line 879, in exec_module
File "", line 1012, in get_code
File "", line 672, in _compile_bytecode
ValueError: bad marshal data (unknown type code)
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

Encountered error while generating package metadata.

See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.
```
How can I fix this?

Start by reproducing the failure with run.bat and follow the setup path through launch.py and modules/launch_utils.py, especially the clip installation call. Inspect the reported pip output and the referenced OpenAI CLIP archive. Done means identifying a repository-side fix or documenting that the failure is caused by the local Python environment, then confirming that run.bat completes installation.

Written by the indexing model from the issue text.