Fix BNCI2014_001 stimulus timeline metadata

[Copilot]

The generated BNCI2014_001 stimulus protocol figure showed an incorrect 2s fixation + 2s motor imagery timeline. The source protocol is 2s fixation, 1.25s cue, and motor imagery through t=6s.

• BNCI2014_001 metadata

  • Added explicit stimulus timing for cross onset, cue onset, and trial duration.
  • Corrected cue_duration_s from 4.0 to 1.25.

• Timeline extraction

  • Updated motor-imagery timeline generation to represent protocols where imagery starts at cue onset and overlaps with the cue.

• Regression coverage

  • Added a focused test asserting the generated BNCI2014_001 timeline phases.

assert [(p.label, p.onset_s, p.duration_s) for p in timeline.phases] == [
    ("Fixation +", 0.0, 2.0),
    ("Cue + MI", 2.0, 1.25),
    ("Motor Imagery", 3.25, 2.75),
]

[bruAristimunha]

fix the pre-commit and the what's new, put me as author @copilot

[Copilot]

fix the pre-commit and the what's new, put me as author @copilot

Addressed in 7aca3e3: ran/fixed pre-commit formatting and added the What's new bug entry attributed to Bruno Aristimunha_. Validation passed with pre-commit, targeted tests, Code Review, and CodeQL.