Add biome 2.5.8

[agent-137]

Adds a package for Biome 2.5.8, the JS/TS/JSON/CSS formatter and linter.

• Built from the source tarball (tag @biomejs/biome@2.5.8) with the packaged Rust 1.97.1 toolchain (satisfies upstream's 1.96.1 requirement).
• make is in build_deps because tikv-jemalloc-sys's build script shells out to it.
• Uses upstream's release profile as-is, including fat LTO. Note: the fat-LTO link of the final binary needs a lot of memory — it OOMed a smaller build sandbox before the sandbox memory was increased.
• min package patched-build biome succeeds and min check --packages biome passes all checkers, including the post-build ones (enumerate bins, missing runtime_deps, standalone biome --version smoketest).

🤖 Generated with Claude Code

Summary by CodeRabbit

• New Features
  • Added Biome version 2.5.8 to the available build packages.
  • Included the Biome command-line tool for formatting and linting workflows.
  • Added support for installing and running Biome through the packaged command-line executable.
  • Added version verification to help ensure the packaged tool runs correctly.
  • Included licensing and source information for the new package.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 6b31a548-7f99-43d5-91ab-0eef0bf65d85

📥 Commits

Reviewing files that changed from the base of the PR and between a93aba6 and 5326eca.

📒 Files selected for processing (1)

• packages/biome/build.sh

💤 Files with no reviewable changes (1)

• packages/biome/build.sh

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📝 Walkthrough

Walkthrough

Adds Biome 2.5.8 as a package. The build definition verifies the upstream source, declares dependencies and metadata, and runs a version smoketest. The build script compiles biome_cli and installs the binary.

Changes

Biome package

Layer / File(s)	Summary
Build and package Biome packages/biome/build.ncl, packages/biome/build.sh	The package definition fetches and verifies Biome 2.5.8, declares build settings and metadata, maps the biome binary, and adds a version smoketest. The build script configures GCC and Rust flags, compiles biome_cli in release mode, and installs the binary.

Estimated code review effort: 2 (Simple) | ~15 minutes

Sequence Diagram(s)

sequenceDiagram
  participant BuildSystem
  participant BiomeBuildDefinition
  participant BiomeBuildScript
  participant BiomeSource
  BuildSystem->>BiomeBuildDefinition: resolve and verify Biome 2.5.8 source
  BiomeBuildDefinition->>BiomeBuildScript: run build.sh
  BiomeBuildScript->>BiomeSource: compile biome_cli
  BiomeBuildScript->>BuildSystem: install biome binary
  BuildSystem->>BuildSystem: run biome --version smoketest

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Possibly related PRs

• gominimal/pkgs#371: Adds a similar single-binary Rust CLI package build with reproducible Cargo settings.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
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.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the main change: adding the Biome 2.5.8 package.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch add-biome

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_{Comment @coderabbitai help to get the list of available commands.}

[coderabbitai]

🧹 Nitpick comments (1)

packages/biome/build.sh (1)

12-12: 🔒 Security & Privacy | 🔵 Trivial | ⚡ Quick win

Pin Cargo dependency resolution.

Add --locked to packages/biome/build.sh#L12. Cargo.lock pins the dependency graph, but it does not provide crate sources.

Keep needs.internet in packages/biome/build.ncl unless the fetch pipeline stages all registry sources for this package.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@packages/biome/build.sh` at line 12, Pin Cargo dependency resolution in the
build command by adding the --locked flag to cargo build in
packages/biome/build.sh lines 12-12. Keep needs.internet unchanged in
packages/biome/build.ncl lines 39-41 unless the fetch pipeline is updated to
stage all registry sources for this package.

Sources: Coding guidelines, Learnings

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Nitpick comments:
In `@packages/biome/build.sh`:
- Line 12: Pin Cargo dependency resolution in the build command by adding the
--locked flag to cargo build in packages/biome/build.sh lines 12-12. Keep
needs.internet unchanged in packages/biome/build.ncl lines 39-41 unless the
fetch pipeline is updated to stage all registry sources for this package.

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 3a751803-3e5f-485b-b3ea-eb8d4925c2f3

📥 Commits

Reviewing files that changed from the base of the PR and between fa95453 and a93aba6.

📒 Files selected for processing (2)

• packages/biome/build.ncl
• packages/biome/build.sh