fix: adapt genesis crate to rc.1 deps

Update bin/genesis for the rc.1 dep bump:
- miden-agglayer: 0.14.0-beta.4 -> 0.14.0-rc.1
- RpoRandomCoin -> RandomCoin

Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

Author: claude

bin/genesis/Cargo.toml

@@ -21,7 +21,7 @@ anyhow          = { workspace = true }
 clap            = { workspace = true }
 fs-err          = { workspace = true }
 hex             = { workspace = true }
-miden-agglayer  = { version = "=0.14.0-beta.4" }
+miden-agglayer  = { version = "=0.14.0-rc.1" }
 miden-protocol  = { features = ["std"], workspace = true }
 miden-standards = { workspace = true }
 rand            = { workspace = true }

bin/genesis/src/main.rs

@@ -14,7 +14,7 @@ use miden_protocol::account::{
     AccountType,
 };
 use miden_protocol::crypto::dsa::falcon512_poseidon2::{self, SecretKey as FalconSecretKey};
-use miden_protocol::crypto::rand::RpoRandomCoin;
+use miden_protocol::crypto::rand::RandomCoin;
 use miden_protocol::utils::serde::Deserializable;
 use miden_protocol::{Felt, ONE, Word};
 use miden_standards::AuthMethod;
@@ -159,7 +159,7 @@ path = "bridge.mac"
 fn generate_falcon_keypair() -> (falcon512_poseidon2::PublicKey, FalconSecretKey) {
     let mut rng = ChaCha20Rng::from_seed(rand::random());
     let auth_seed: [u64; 4] = rng.random();
-    let mut coin = RpoRandomCoin::new(Word::from(auth_seed.map(Felt::new)));
+    let mut coin = RandomCoin::new(Word::from(auth_seed.map(Felt::new)));
     let secret_key = FalconSecretKey::with_rng(&mut coin);
     let public_key = secret_key.public_key();
     (public_key, secret_key)