* fix(config): add regression test and changeset for #3197 CJS whitelist fix
The underlying fix (RUNTIME_STATE_KEYS in config-schema.cjs) was already
applied to main via #3162. This PR adds the regression test that would have
caught the drift had it been present — verifying the CJS path end-to-end —
and the changeset fragment to formally close#3197.
Closes#3197
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* test(config): isolate tmpDir per test for cleanup
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
