- Deduplicated the re-imported changelog bullets from the PR #8403 merge,
keeping the condensed register with only the new #8402 entry.
- getUserHomeCandidates memoizes the WSL home candidate keyed by
platform + WSL markers + USERPROFILE, so a wedged interop pipe costs
one bounded probe per process instead of one 500ms stall per
discovery loader, while env changes (tests, SDK embeddings) still
recompute.
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