Fredrik Johansson
b47f659b7d
feat: identity export/import (yaw-key-backup-1)
Portable encrypted identity backup compatible with the sister project's
format — argon2id KDF + nacl secretbox, peer ID visible in plaintext for
pre-import verification.
- crypto: ExportIdentity, ImportIdentity, SaveIdentity
- proto: export_identity / import_identity IPC commands + events
- ipc: export_identity returns encrypted blob; import_identity validates
and decrypts (read-only — on-disk write requires daemon restart)
- netmgr: MasterIdentity() accessor
- daemon: --import-identity / --import-passphrase flags write identity.json
and exit, enabling scripted account migration
- tests: roundtrip and wrong-passphrase rejection
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>