feat(wasm-mps): interleave VRF-DKG into ed25519 DKG via with_vrf

Safe creation advances signing DKG and VRF-DKG in the same three rounds
when round0 is called with with_vrf=true, and writes both finished shares
into one RootDocument. Ordinary DKG (with_vrf=false) keeps the previous
bare Keyshare encoding. Hard-derive takes that combined document; the
standalone VRF-DKG wasm exports are removed.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: joeypinz

packages/wasm-mps/Cargo.lock

@@ -17,7 +17,7 @@ bincode = { package = "bincode-next", version = "3.1.1", features = ["serde"] }
 crypto_box = "0.9"
 getrandom = { version = "0.2", features = ["js"] }
 js-sys = "0.3"
-multi-party-schnorr = { version = "1.3.0-pre.6", features = ["serde", "eddsa", "redpallas"] }
+multi-party-schnorr = { version = "1.3.0-pre.6", features = ["serde", "eddsa", "redpallas", "vrf"] }
 orchard = { version = "0.13", default-features = false }
 zcash = { git = "https://github.com/silence-laboratories/garbling", rev = "268a8499bca4f1a1eea532117430fd6fd55310c8", features = ["dkg"] }
 pasta_curves = { version = "0.5", default-features = false }