[github-actions]

Fixes #286

Cause

just-bash passes redirected output from cat, heredocs and tee to writeFile/appendFile as a byte string (one char per byte) with encoding "binary". WorkspaceFsAdapter.writeFile and appendFile ignored that argument (packages/computer/src/backends/worker-shell/adapter.ts:153-179), so the store UTF-8-encoded the string again and every byte >= 0x80 became two bytes (é stored as c3 83 c2 a9).

Change

A small binaryContent helper converts strings tagged "binary" or "latin1" (string or {encoding} option) into bytes, one byte per char. Both methods use it. Untagged and utf8 strings behave as before. Adds two tests to adapter.test.ts and a patch changeset.

Why this option

It fixes the problem at the one place that misreads the encoding, adds no public API, and leaves text writes (printf, echo) untouched.

Alternatives considered

• Patching just-bash to emit UTF-8 text: it's a dependency we don't own, and the "binary" contract is correct.
• Latin-1 decoding only in appendFile: leaves writeFile broken.

Checks

• The two new tests fail on main and pass with the change.
• adapter.test.ts: 34 tests pass.
• npm run typecheck in packages/computer passes.

Commits pushed by this task don't start CI. A maintainer can mention @ask-gardener on this pull request to switch to an alternative or ask for changes.

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[changeset-bot]

🦋 Changeset detected

Latest commit: 3d76f6a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 4 packages

Name	Type
@cloudflare/computer	Patch
@cloudflare/dofs	Patch
@cloudflare/computer-rpc	Patch
@cloudflare/computerd	Patch

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.