- credential-manager.js: add diagnose(key) method that distinguishes
ok | missing | unreadable | corrupt instead of silently returning null
- crypto-utils.js: silent fallback to .encryption-key.bak when primary
can't decrypt existing credentials; first-run bootstrap writes .bak;
rotateKey() backs up old key before swap
- routes/auth/totp.js: new public /api/v1/totp/recovery-info endpoint
returns {status, isSetUp, hint} so UI can show meaningful errors
- middleware.js: add /totp/recovery-info to PUBLIC_ROUTES so the
locked-out user can read the diagnostic without being logged in
Krystie
d230b39948