Trilha de auditoria encadeada por hash e comando guara audit

Cada ação sobre a evidência (inspect, scan, recover, image, hash, search, verify,
exportações e sessões) vira uma linha JSON com usuário, máquina, hora UTC e detalhes,
encadeada por SHA-256. guara audit lista e --verify aponta a entrada onde a cadeia
quebra. Senhas e chaves nunca entram no registro.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

docs/architecture.md

@@ -43,6 +43,7 @@ recover                       copies with MD5, SHA-1 and SHA-256 and writes the
 | `source`, `device` | Open devices and images read-only; list disks |
 | `image` | Raw image tolerant of bad sectors, with an error map |
 | `ewf`, `aff4` | Read and write E01/Ex01 and AFF4 |
+| `audit` | Hash-chained audit trail of every examiner action |
 | `vdisk/` | Read QCOW2, VMDK, VHD, VHDX and DMG as the disk they contain |
 | `assemble` | Builds the virtual disk: image, RAID, LVM and encrypted volume |
 | `raid`, `raid_detect`, `lvm` | RAID reassembly (with automatic parameter discovery) and LVM2 |