The RPC console echoed and stored typed commands verbatim, so `walletpassphrase
<secret>`, `z_importkey <key>`, `encryptwallet <pass>` etc. left the secret in the
visible log AND the 100-entry recall history (copyable). Adds a pure, unit-testable
RedactConsoleCommand()/ConsoleCommandCarriesSecret() (allowlist of 13 secret-bearing
first-tokens) in console_tab_helpers; submitConsoleCommand() now echoes and stores
`> walletpassphrase ****` while still executing the real command unredacted. Bare
secret commands and non-secret commands pass through unchanged.
Output-secret commands (dumpprivkey / z_exportkey / z_exportmnemonic) — whose secret is
in the RESULT — are a separate redaction concern, tracked as a follow-up.
First fix in the wallet-hardening P0-A cluster (see docs/wallet-hardening.md). New
testConsoleSecretRedaction (11 assertions); ctest 1/1.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
DanS
da0e9f5915