JavaScript: return Float64Arrays rather than Arrays

[agarny]

Fixes #538.

[Copilot]

Pull request overview

This pull request aims to improve JavaScript binding performance by returning Float64Arrays instead of regular JavaScript Arrays from C++ methods that provide numerical data. The change affects the SED instance task interface where various data arrays (VOI, states, rates, constants, computed constants, and algebraic variables) are returned to JavaScript code. However, the implementation has a critical memory safety bug.

Changes:

• Modified C++ SedInstanceTask to return Float64Array via a new toFloat64Array helper function
• Updated JavaScript tests to expect Float64Array instead of Array
• Version bump from 0.20260211.0 to 0.20260226.0

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
src/sed/sedinstancetask.cpp	Implemented toFloat64Array helper and updated all *AsArray() methods to use it
tests/bindings/javascript/sed.coverage.test.js	Updated test assertions to compare against emptyFloat64Array instead of empty arrays
tests/bindings/javascript/res/index.html	Minor HTML formatting changes (whitespace cleanup)
VERSION.txt	Version bump to 0.20260226.0

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[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated no new comments.

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