Expose org_unwrap_key(keys_blob, device_private_openssh) to let the
extension SW unwrap a member's ECIES-wrapped org master key into an
ordinary Zeroizing session handle. The returned handle is key-agnostic
and works with the existing item_decrypt/manifest_decrypt AEAD.
Key-form finding: device private keys are OpenSSH PEM blobs produced by
relicario_core::device::generate_keypair(), not base64 raw bytes. The
plan's "device_private_key_base64" parameter name was misleading; all
code and the .d.ts declaration use "device_private_openssh" to match
the spec and reality.
Adds ssh-key dep to relicario-wasm for PEM parsing in decode_device_seed.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014s527M917W47LDrfQ4t47g
d55861ffd8