A missing temporary path stops Darwin native-inspector preparation before
capture allocation can account for resources. Keep its progress coverage
unknown; Linux reaches the capture root allocation and reports not-required
resources. Assert the public typed failure preserves the selected temp path.
The combined Electron/progress focused rerun passed 33 tests on macOS arm64
with Node 24.18.0. The seven progress cases passed; native Linux was not run.
Static checks, docs checks and test discovery also passed on the final tree.