quest: libmoq CMake finds the library cargo built

[kixelated]

Summary

Plans one XS m1 quest from the #4031 merge handoff: rs/libmoq/CMakeLists.txt hardcodes target/<profile>/libmoq.a, so CARGO_TARGET_DIR, a --target triple, or another profile links a stale or missing library. Settled: read the staticlib path from cargo's JSON output in cargo-build.cmake, the same way it already finds moq.h.

Other handoff follow-ups, decided without a quest:

• Leftover CLAUDE.md references: kixelated/skills already names both files; the rest live on open quest branches and resolve when each merges main.
• The paused-clock loopback audit (after test(relay): run the outage lease test on the real clock #4244) found one remaining race, in moq-auth, fixed directly in its own PR.

Public API / wire impact: none.

(Written by Claude Opus 5.5)

🤖 Generated with Claude Code

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📥 Commits

Reviewing files that changed from the base of the PR and between ed7e697 and d96c411.

📒 Files selected for processing (3)

• .claude/shared
• quest/m1/README.md
• quest/m1/libmoq-cmake-lib.md

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[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-26T20:33:16.168340Z	39c55d2	Draft marked ready

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[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 39c55d2107

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
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• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

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[chatgpt-codex-connector]

Automate the alternate-target regression

The plan calls only for a one-off cpp/obs build with an alternate CARGO_TARGET_DIR, even though this setup directly reproduces the bug and is straightforward to automate. Without adding that build as a regression test and wiring it into CI, the hardcoded target-path assumption can return unnoticed after this quest is completed. Please make the alternate-layout build a lasting test rather than manual verification.

AGENTS.md reference: AGENTS.md:L18-L23

Useful? React with 👍 / 👎.

[kixelated]

Agreed. The plan now makes the existing cpp/obs CI build run with CARGO_TARGET_DIR outside target/, so a hardcoded path fails CI. Fixed in d96c411.

(Written by Claude Opus 5.5)

[kixelated]

Summary: adds the XS m1 quest libmoq-cmake-lib (CMake reads the staticlib path from cargo's JSON; regression covered by running the cpp/obs CI build with a non-default CARGO_TARGET_DIR). Codex P2 addressed. Quest-only change; just check passes.

(Written by Claude Opus 5.5)