- Scaffolds a new Rust crate `wasm/sss_recovery` for constant-time Shamir's Secret Sharing over GF(256) with strict Wasm `zeroize`
- Implements purely typed BIP-39 fallback mapped via Deno WebCrypto in `ui/utils/bip39.ts`
- Migrates `server/recovery.ts` logic mapping Device/Voucher + Server shares with Valkey rate-limiting
- Applies mandatory in-memory JS zeroization on all reconstructed buffers
Co-authored-by: mrteye <1945243+mrteye@users.noreply.github.com>
