JavaScript: have File.setContents() take only the contents as a parameter

[agarny]

Fixes #535.

[Copilot]

Pull request overview

This PR updates the JavaScript bindings so File.setContents() accepts the file contents directly (e.g., a Uint8Array) rather than a (pointer, length) pair, aligning the JS API with the C++/Python ergonomics and simplifying test/demo code.

Changes:

• Update the JS binding of File.setContents() to take a single JS value and convert it into bytes.
• Refactor JavaScript binding tests and the browser demo to pass Uint8Array contents directly (removing explicit _malloc/_free usage in most places).
• Update version-bumping scripts and bump VERSION.txt.

Reviewed changes

Copilot reviewed 21 out of 22 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
tests/bindings/javascript/solver.secondorderrungekutta.test.js	Switch to 1-arg setContents() and drop manual wasm memory management.
tests/bindings/javascript/solver.kinsol.test.js	Same API update across KINSOL tests.
tests/bindings/javascript/solver.heun.test.js	Same API update for Heun solver tests.
tests/bindings/javascript/solver.fourthorderrungekutta.test.js	Same API update for RK4 tests.
tests/bindings/javascript/solver.forwardeuler.test.js	Same API update for Forward Euler tests.
tests/bindings/javascript/solver.cvode.test.js	Same API update across CVODE tests.
tests/bindings/javascript/solver.coverage.test.js	Coverage tests updated to 1-arg setContents().
tests/bindings/javascript/sed.serialise.test.js	Serialisation tests updated to 1-arg setContents().
tests/bindings/javascript/sed.instance.test.js	Instance tests updated, but one call site still uses the old 2-arg form.
tests/bindings/javascript/sed.coverage.test.js	SED coverage tests updated to 1-arg setContents().
tests/bindings/javascript/sed.basic.test.js	Basic SED tests updated to 1-arg setContents().
tests/bindings/javascript/res/res/libopencor.js	Demo now uses FileReader result and passes a Uint8Array to setContents().
tests/bindings/javascript/res/index.html	Minor UI text spacing fix.
tests/bindings/javascript/logger.coverage.test.js	Logger coverage tests updated to 1-arg setContents().
tests/bindings/javascript/file.type.test.js	File type tests updated to 1-arg setContents().
tests/bindings/javascript/file.coverage.test.js	Mostly updated, but still contains an old 2-arg setContents() call.
tests/bindings/javascript/file.child.test.js	Helper refactored to pass contents directly instead of ptr/len.
tests/bindings/javascript/file.basic.test.js	Basic file tests updated to 1-arg setContents().
src/bindings/javascript/file.cpp	Changes the embind signature to accept a single JS value and convert to bytes.
newversion.bat	Reworked version bumping to derive from VERSION.txt + date (needs quoting fixes).
newversion	Same as above for *nix script (needs quoting fixes).
VERSION.txt	Version bumped from 0.20260210.0 to 0.20260211.0.

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Pull request overview

Copilot reviewed 22 out of 23 changed files in this pull request and generated 5 comments.

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Pull request overview

Copilot reviewed 22 out of 23 changed files in this pull request and generated 2 comments.

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Pull request overview

Copilot reviewed 22 out of 23 changed files in this pull request and generated 1 comment.

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