Under the hood
Desktop bootstrap config validation now explicitly flags deprecated keys.
Desktop-bootstrap config validation used by the Claude Code gateway gains a new deprecated diagnostic kind, produced by a new detectDeprecations/describeDeprecation pass separate from the existing unknown/refused-key logic. Mapping a legacy flat key back to its canonical name now goes through flatConfigKeys/getFieldMeta(...).legacyFlatKey instead of the old resolveLegacyFlatKeys.