Add --no-line-editing flag to Octave startup command

[blink1073]

References

Description

Adds --no-line-editing to the Octave startup command in _create_repl. This flag disables readline-based line editing in the Octave subprocess, which improves performance by reducing overhead in the REPL interaction.

Changes

• Added --no-line-editing to the Octave CLI flags in kernel.py:595

Backwards-incompatible changes

None

Testing

All 167 existing tests pass.

AI usage

• Some or all of the content of this PR was generated by AI.
• The human author has carefully reviewed this PR and run this code.
• AI tools and models used: Claude Sonnet 4.6 (Claude Code)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.62%. Comparing base (9ccd573) to head (6f2adce).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #296   +/-   ##
=======================================
  Coverage   91.62%   91.62%           
=======================================
  Files           6        6           
  Lines         430      430           
=======================================
  Hits          394      394           
  Misses         36       36           

Flag	Coverage Δ
linux	91.39% <100.00%> (ø)
windows	91.62% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
octave_kernel/kernel.py	92.47% <100.00%> (ø)

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