Fix the release: File permissions, jtreg timeouts, public scoped package - #8

This PR fixes three release-blocking issues: (1) File permission methods now actually modify file modes via a new chmod backend hook (implemented in NodeBackend), with backends lacking permission bits preserving the old no-op behavior; (2) jtreg timeout increased from 120s to 600s to accommodate slow tests on ARM runners; (3) publishConfig.access set to public so the scoped npm package publishes without restriction. The changes are coherent and the added test covers the permission fix.

_{review-bot, model nvidia/nemotron-3-ultra-550b-a55b:free, verdict approve}

Actionable comments posted: 3

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Inline comments:
Review comments at @src/fs.ts:
- Line 173: Update VFS.chmod to check whether the normalized path is in DEVICES
before calling this.resolve(path), and return false for device paths. Preserve
the existing backend resolution and chmod behavior for other paths.

Review comments at @src/natives/io.ts:
- Line 394: Update checkAccess0 to consult the host’s read and execute access
permissions so canRead() and execute checks reflect changes made by setReadable
and related permission setters; retain an appropriate fallback for backends that
do not expose permission bits.
- Line 283: Update the setReadOnly path that calls chmod so open
FileOutputStream instances retain write access until their buffered writes are
safely persisted, including writes made after setReadOnly(); apply the read-only
permission once those streams are closed.

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Reviewing files that changed from the base of the PR and between b8eb93c and ded64db.

Files selected for processing: 7

• .github/workflows/release.yml
• package.json
• src/fs.ts
• src/natives/io.ts
• src/node.ts
• test/permissions/Permissions.java
• test/programs.test.ts

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Additional comments: 2

package.json: 1

42-44: LGTM!

.github/workflows/release.yml: 1

38-38: LGTM!

The PR fixes file permission handling by adding chmod/access backend hooks, implementing them in NodeBackend, updating UnixFileSystem and nio natives to use VFS.access, increasing jtreg timeout to 600s, and setting npm publishConfig.access to public. However, the modified flush function in src/natives/io.ts unconditionally clears the dirty flag even when both write attempts fail, causing silent data loss.

Not approved: the check on these comments could not run, so they are unverified.

_{review-bot, model nvidia/nemotron-3-ultra-550b-a55b:free, verdict comment}

The PR fixes OpenJDK regression test failures by implementing proper file permission handling: adding chmod and access backend hooks (implemented in NodeBackend), updating java.io.File and nio natives to use VFS.access for read/write/execute checks, making open files retain write access after mode changes (fd-like behavior), increasing jtreg timeout to 600s for slow tests, and setting npm publishConfig.access to public. The flush logic correctly only clears the dirty flag on successful write; the earlier review's data-loss concern does not apply to the current diff.

Not approved: 1 earlier point is still open in the threads.

_{review-bot, model nvidia/nemotron-3-ultra-550b-a55b:free, verdict comment}

All points from the last review are settled in the threads.

_{review-bot, model nvidia/nemotron-3-ultra-550b-a55b:free, verdict approve}