* fix: preserve ${VAR} env var references when writing config back to disk
Fixes#11466
When config is loaded, ${VAR} references are resolved to their plaintext
values. Previously, writeConfigFile would serialize the resolved values,
silently replacing "${ANTHROPIC_API_KEY}" with "sk-ant-api03-..." in the
config file.
Now writeConfigFile reads the current file pre-substitution, and for each
value that matches what a ${VAR} reference would resolve to, restores the
original reference. Values the caller intentionally changed are kept as-is.
This fixes all 50+ writeConfigFile call sites (doctor, configure wizard,
gateway config.set/apply/patch, plugins, hooks, etc.) without requiring
any caller changes.
New files:
- src/config/env-preserve.ts — restoreEnvVarRefs() utility
- src/config/env-preserve.test.ts — 11 unit tests
* fix: remove global config env snapshot race
* docs(changelog): note config env snapshot race fix
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Co-authored-by: Peter Steinberger <steipete@gmail.com>
