fix(opencode): bake llvm tools for Rust coverage-evidence

[seonghobae]

Summary

• OpenCode Review Dispatch coverage-evidence fails on Rust repos (e.g. TEPP#46) with:
  error: failed to find llvm-tools-preview
• Offline image had cargo-llvm-cov + Debian rustc/cargo but no llvm-cov/llvm-profdata.
• Install llvm in the coverage image and export LLVM_COV/LLVM_PROFDATA from ensure_rust_toolchain.

Unblocks

• TEPP commercialization serial PR Ignore transient governance helper cancellations #46 (exact-head Rust CI already green; blocked only on OpenCode primary APPROVE).

Test plan

• Merge this PR
• Re-dispatch OpenCode Review for TEPP#46 current head
• coverage-evidence no longer fails on missing llvm tools

[cursor]

Bugbot is not enabled for your account, so this pull request was not reviewed.

Enable Bugbot in the Cursor dashboard to get automatic reviews on future PRs.

[coderabbitai]

Important

• 🔍 Trigger review

This repository does not receive automatic reviews because it has fewer than 10 stars.

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: f2480c50-7715-48da-8bdc-92d48560248c

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

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

[seonghobae]

@opencode-agent review

Please APPROVE exact head 7badfd61e0031e632ddcf9394ba21500097cb7ee if the llvm bake is sound. This unblocks Rust coverage-evidence (TEPP #46 OpenCode APPROVE). Last pusher is seonghobae; no self-approve.

[seonghobae]

@opencode-agent @cwl-noema-review please review exact head 7badfd6.

This unblocks TEPP#46 OpenCode primary APPROVE: coverage-evidence was failing with missing llvm-tools-preview / LLVM_COV. This PR bakes Debian llvm into the offline coverage image and exports LLVM_COV/LLVM_PROFDATA.

Strix on the prior attempt was NIM 429 then runner cancel (infra), not a finding. Requeued.

[seonghobae]

@opencode-agent review exact head 7badfd61e0031e632ddcf9394ba21500097cb7ee.

Required checks no longer list Strix as in progress. Remaining merge 405 is last-pusher approval only. Please APPROVE this llvm bake if sound so TEPP #46 can get a current-head OpenCode APPROVE. No self-approve.

[seonghobae]

Hourly: Strix green; OpenCode Review Dispatch at coverage-evidence waiting on runners. All other checks green. Need independent APPROVE then merge to unblock TEPP#46 llvm-tools.

Head 7badfd6. No self-approve.

[seonghobae]

Hourly: All required checks green (incl. Strix). OpenCode Review Dispatch coverage-evidence success on this head; opencode-review job still in_progress (~30m+, runner 1000965167) at https://github.com/ContextualWisdomLab/.github/actions/runs/31987744089

.github ruleset needs 2 approving reviews + last-push approval (author/last pusher is seonghobae). @opencode-agent @cwl-noema-review please complete APPROVE on 7badfd6 when review finishes. Unblocks TEPP#46 llvm-tools OpenCode path.

[seonghobae]

Hourly: Force-cancelled hung OpenCode run; redispatched via merge scheduler.

New OpenCode Review Dispatch https://github.com/ContextualWisdomLab/.github/actions/runs/31996005046 — coverage-evidence success, opencode-review in_progress.

Ruleset: 2 APPROVEs + last-push approval (pusher seonghobae). @opencode-agent @cwl-noema-review please APPROVE 7badfd6 when complete. Unblocks TEPP#46.

[seonghobae]

Superseded by #1089. The v3 PR is the same bounded system-LLVM coverage fix on current main with a fresh concurrency identity, current exact-head required checks green, and auto-merge armed. Closing this older landing vehicle prevents duplicate coverage producer changes.