fixes related to doctests

[drammock]

PR Description

• fixup a couple missed bits from [MRG] Add motion to BIDSPath #1430
• fix the output formatting in the doctest for event_file_to_annotation_kwargs
• make sure when we read TSV files, the column names end up as builtin str class (not np.str_)

Merge checklist

Maintainer, please confirm the following before merging.
If applicable:

• All comments are resolved
• This is not your own PR
• All CIs are happy
• PR title starts with [MRG]
• whats_new.rst is updated
• New contributors have been added to CITATION.cff
• PR description includes phrase "closes <#issue-number>"

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.89%. Comparing base (1e0a96e) to head (0598c07).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1478      +/-   ##
==========================================
- Coverage   96.94%   96.89%   -0.05%     
==========================================
  Files          43       43              
  Lines       10077    10079       +2     
==========================================
- Hits         9769     9766       -3     
- Misses        308      313       +5     

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[sappelhoff]

changes LGTM

[larsoner]

CIs unhappy. Pushed a little commit to get things further on my system where it still fails with NumPy-related stuff (a few newlines added by me for readability)

$ pytest --doctest-modules mne_bids/read.py
=============================================================================== test session starts ================================================================================
platform linux -- Python 3.13.7, pytest-8.3.5, pluggy-1.6.0
PySide6 6.10.0 -- Qt runtime 6.10.0 -- Qt compiled 6.10.0
rootdir: /home/larsoner/python/mne-bids
configfile: pyproject.toml
plugins: dependency-0.6.0, anyio-4.9.0, cov-6.1.1, qt-4.4.0, rerunfailures-16.1, timeout-2.4.0
collected 1 item                                                                                                                                                                   

mne_bids/read.py F                                                                                                                                                           [100%]

===================================================================================== FAILURES =====================================================================================
_____________________________________________________________ [doctest] mne_bids.read.events_file_to_annotation_kwargs _____________________________________________________________
606 >>>
607 >>> # Write the DataFrame to a temporary file
608 >>> temp_dir = tempfile.gettempdir()
609 >>> events_file = Path(temp_dir) / 'events.tsv'
610 >>> df.to_csv(events_file, sep='\t', index=False)
611 >>>
612 >>> # Read the events file using the function
613 >>> events_dict = events_file_to_annotation_kwargs(events_file, verbose=True)  # doctest:+ELLIPSIS
614 Reading events from .../events.tsv.
615 >>> events_dict
Expected:
    {'onset': array([0.1, 0.2, 0.3]),
    'duration': array([0.1, 0.1, 0.1]),
    'description': array(['event1', 'event2', 'event1'], dtype='<U6'),
    'event_id': {'event1': 1, 'event2': 2},
    'extras': [{'foo': 'a'}, {'foo': 'b'}, {'foo': 'c'}]}
Got:
    {'onset': array([0.1, 0.2, 0.3]),
    'duration': array([0.1, 0.1, 0.1]),
    'description': array(['event1', 'event2', 'event1'], dtype='<U6'),
    'event_id': {'event1': np.int64(1), 'event2': np.int64(2)},
    'extras': [{'foo': 'a'}, {'foo': 'b'}, {'foo': 'c'}]}

/home/larsoner/python/mne-bids/mne_bids/read.py:615: DocTestFailure

Maybe we should use https://github.com/scipy/scipy_doctest to avoid this sort of stuff? Could be worth doing in this PR if it magically fixes things here

[drammock]

CIs unhappy. Pushed a little commit to get things further on my system where it still fails with NumPy-related stuff

hah. yeah, I made almost exactly those changes already over in #1475. This PR exists because I was trying to split up semantically unrelated changes into different PRs (to make reviewing easier), but then realized that no matter what I do this PR will still have the curryreader-related CI failures, and the curryreader PR will still have the doctest failures, so I just marked that PR as closing this one, and am doing everything over there now.