ci: build and test on linux-aarch64

[olantwin]

🤖 AI text below 🤖

Adds linux-aarch64 to the workspace platforms and locks it. A new build-linux-aarch64 job runs the same tasks as build-and-test on an ubuntu-24.04-arm runner, and "All checks passed" waits for both. The linux-64 job is unchanged.

The SHiP dependencies resolve from the new linux-aarch64 builds on ship-experiment/stable (ShipSoft/ship-conda-recipes#215), and the rest comes from conda-forge, which now has phlex and GeoModel for aarch64. The lock was regenerated with pixi 0.82 and only adds entries. No linux-64 package changes.

This is the first build of this repo on ARM, so the new job is the actual test.

Summary by CodeRabbit

• Build & Validation
  • Automated checks now include Linux ARM64 builds and tests alongside the existing Linux checks. This expands platform coverage and helps identify compatibility issues on ARM-based Linux systems before changes are accepted. The overall check also reports failure if either platform’s required build or tests fail or are cancelled.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Organization UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: ad4a3f75-0259-4121-9f95-cab575128cd4

📥 Commits

Reviewing files that changed from the base of the PR and between 956472e and 93e64a0.

⛔ Files ignored due to path filters: 1

• pixi.lock is excluded by !**/*.lock

📒 Files selected for processing: 2

• .github/workflows/build-test.yml
• pixi.toml

Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review.

📝 Walkthrough

The Pixi workspace now targets Linux ARM64. The CI workflow runs the existing build workflow on an ARM64 runner and includes that job in the all-checks dependencies.

Changes: Linux ARM64 build validation

Layer / File(s)	Summary
Add Linux ARM64 workspace platform pixi.toml	The workspace platform list adds linux-aarch64 and retains linux-64.
Run ARM64 builds in CI .github/workflows/build-test.yml	The workflow adds an ARM64 job that runs the test and geometry tasks. The all-checks job now depends on both build jobs.

Priority: ➖ Normal

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Feature

Merge Risk: ⚪ Minimal · up to 93e64

The ARM64 build and required status check extend CI coverage. No concrete merge-blocking behavior is established, so the change is ready to merge subject to ordinary checks.

Pre-merge checks: 5

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the main change: adding CI build and test coverage for Linux AArch64.
Docstring Coverage		No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (2 skipped: 2 unsupported.)

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Commit to this branch
• Create a new PR

• Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

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