Convert .golangci.yml to the v2 layout: linters-settings and
issues.exclude-use-default were rejected by the v2 schema, so the lll,
funlen, cyclop, and dupl settings were never applied. Disable
exhaustruct_v5 (the newer major version of the already-disabled
exhaustruct) and the deprecated gomodguard. Pin the golangci-lint image
at v2.15.0 in the Makefile and Dockerfile.
The private key is now the BIP85 HEX application output for 32 bytes at
m/83696968'/128169'/32'/{index}' from the BIP32 master key of the BIP39
seed, via sneak.berlin/go/secret/pkg/bip85, so any BIP85 tool reproduces
it and one mnemonic backs many keypairs through Params.Index. Tests
check the mnemonic-to-master step and the HEX application against the
BIP85 specification vectors and pin the resulting keypair.
Remove KeyFromHex, Seal, and Open with their errors and constants. The
library only derives crypto_box keypairs from BIP39 mnemonics; callers
use golang.org/x/crypto/nacl/box directly for everything else.
sutil holds only the utilities wanted on every machine; it is not a
command-line front end for the packages in pkg/. cbk and bip39wordlist
remain libraries with no CLI surface. The README states the boundary.
Bring back the in-progress viper and go-homedir configuration loading
from the original root command as a persistent pre-run on the root
command, with a --config flag and a config line in sutil info. Restore
the exported main.Version with a nolint directive instead of renaming
it. Export CGO_ENABLED=0 from the Makefile, drop -race from make test,
and remove the C toolchain from the Docker builder stage.
Move to Go 1.26, embed the wordlist from english.txt, add
ValidateWordlist, NormalizeWordlist, and GenerateMnemonic with tests,
and remove the old root-level CLI that used the previous module path.
sneak