genkey optionally takes a second passphrase that unlocks a separate
decoy identity. Every command run with it sees and changes only decoy
files; records sealed to the other key are skipped silently.
The key file always carries two equal-size slots in random order, with
random bytes in an unused slot, and both slots are always tried. init
seeds each vault with 8-32 entries sealed to a discarded key, so real
files are indistinguishable from filler to a decoy-only holder.
Strip Fury back to its vault functionality in one `vault` command:
genkey, init, add (file or directory, optional folder inside the vault),
list, get, mv and rm.
The hybrid FrodoKEM-640 + ML-KEM-768 encryption core is kept under
internal/pqcrypt. Signing, policies, profiles, backups, SSH remotes,
FIDO2, agents, provenance and compression are removed.
Andy Dixon