fix(release): build linux arm64 target artifact

[aqilaziz]

Summary

• make the Linux ARM64 release helper build the explicit aarch64-unknown-linux-gnu target
• install the Rust target when rustup is available
• package the binary from target/aarch64-unknown-linux-gnu/release so the tarball name and contents match

Refs #1599

Checks

• bash -n scripts/release/build-linux-arm64.sh
• git diff --check

Summary by CodeRabbit

• Chores
  • Improved ARM64 release build process to ensure proper target configuration and correct binary staging for architecture-specific releases.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 03919ed8-1bd4-40c0-8c56-7b4a160bbf31

📥 Commits

Reviewing files that changed from the base of the PR and between 6281aea and f883a3a.

📒 Files selected for processing (1)

• scripts/release/build-linux-arm64.sh

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📝 Walkthrough

Walkthrough

The ARM64 build script now conditionally installs the aarch64-unknown-linux-gnu Rust target via rustup when available, explicitly targets that architecture during compilation, and updates the artifact staging path to retrieve the built binary from the target-specific output directory.

Changes

ARM64 build target configuration

Layer / File(s)	Summary
ARM64 target installation and cargo build configuration scripts/release/build-linux-arm64.sh	Script conditionally installs the aarch64-unknown-linux-gnu Rust target via rustup target add, builds openhuman-core with cargo build --target "$TARGET", and updates the binary staging path to copy from target/${TARGET}/release/ instead of the default release directory.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A script hops cross the ARM64 plain,
With rustup's gift, no target pain,
Cargo builds where the aarch64 shines,
Staging binaries from the right lines! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'fix(release): build linux arm64 target artifact' directly and specifically describes the main change: ensuring the Linux ARM64 build produces the correct target-specific artifact.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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