the core modules gain a proper error taxonomy (CliError with
kind/code/exitCode, classifyError for zod and commander bridges,
suppressFailureEnvelope for streaming commands), atomic config writes
(temp+fsync+rename with win32 acl tightening, lockfiles with stale
pid recovery, quarantine for corrupted files instead of silent reset),
a hardened transport client (rfc 7807 detail extraction, identity
mismatch warnings, epoch-guarded token renewal), credential store
security fixes (execfile without shell on all platforms, powershell
encodedcommand on win32, secret-tool stdin on linux), and 60 new
guardian tests covering every fix. 488 tests total.
Co-Authored-By: Claude Code <noreply@anthropic.com>
