feat(examples): full example and docs for aggregation mode

.gitmodules

@@ -40,3 +40,6 @@
 [submodule "contracts/eigenlayer_contracts/eigenlayer-contracts"]
 	path = contracts/eigenlayer_contracts/eigenlayer-contracts
 	url = https://github.com/Layr-Labs/eigenlayer-contracts.git
+[submodule "examples/L2/contracts/lib/forge-std"]
+	path = examples/L2/contracts/lib/forge-std
+	url = https://github.com/foundry-rs/forge-std

batcher/aligned-sdk/src/common/types.rs

@@ -3,9 +3,8 @@ use std::fmt::Display;
 use std::fmt::Formatter;
 use std::str::FromStr;
 
-use ethers::core::k256::ecdsa::SigningKey;
-use ethers::signers::Signer;
-use ethers::signers::Wallet;
+pub use ethers::core::k256::ecdsa::SigningKey;
+pub use ethers::signers::{Signer, Wallet};
 use ethers::types::transaction::eip712::EIP712Domain;
 use ethers::types::transaction::eip712::Eip712;
 use ethers::types::transaction::eip712::Eip712Error;

examples/L2/.env.holesky

@@ -0,0 +1,8 @@
+# .env example for holesky network
+NETWORK=holesky
+ETH_RPC_URL=https://ethereum-holesky-rpc.publicnode.com
+WS_ETH_RPC_URL=wss://ethereum-holesky-rpc.publicnode.com
+BEACON_CLIENT_URL=<YOUR_BEACON_CLIENT_URL> # This can't be a public one as we need to retrieve blobs and they don't support that method
+PRIVATE_KEY_STORE_PATH=<PATH_TO_STATE_TRANSITION_OWNER_KEYSTORE>
+PRIVATE_KEY_STORE_PASSWORD=<STATE_TRANSITION_OWNER_KEYSTORE_PASSWORD>
+STATE_TRANSITION_CONTRACT_ADDRESS=<STATE_TRANSITION_CONTRACT_ADDRESS>

examples/L2/.gitignore

@@ -0,0 +1,2 @@
+
+crates/l2/programs_ids.json