Feat/add chain spec hardfork

Cargo.toml

@@ -440,7 +440,7 @@ revm-primitives = { version = "14.0.0", features = [
 ], default-features = false }
 
 # eth
-alloy-chains = "0.1.32"
+alloy-chains = "0.1.48"
 alloy-dyn-abi = "0.8.11"
 alloy-primitives = { version = "0.8.11", default-features = false }
 alloy-rlp = "0.3.4"

crates/chainspec/src/spec.rs

@@ -317,6 +317,10 @@ impl ChainSpec {
 
     /// Get the initial base fee of the genesis block.
     pub fn initial_base_fee(&self) -> Option<u64> {
+        if self.chain.named() == Chain::scroll_mainnet().named() {
+            return Some(0)
+        }
+
         // If the base fee is set in the genesis block, we use that instead of the default.
         let genesis_base_fee =
             self.genesis.base_fee_per_gas.map(|fee| fee as u64).unwrap_or(INITIAL_BASE_FEE);

crates/scroll/chainspec/src/scroll.rs

@@ -2,7 +2,7 @@
 
 use alloc::sync::Arc;
 
-use alloy_chains::{Chain, NamedChain};
+use alloy_chains::Chain;
 use alloy_primitives::b256;
 use reth_chainspec::{once_cell_set, ChainSpec};
 use reth_scroll_forks::ScrollHardfork;
@@ -13,7 +13,7 @@ use crate::{LazyLock, ScrollChainSpec};
 pub static SCROLL_MAINNET: LazyLock<Arc<ScrollChainSpec>> = LazyLock::new(|| {
     ScrollChainSpec {
         inner: ChainSpec {
-            chain: Chain::from_named(NamedChain::Scroll),
+            chain: Chain::scroll_mainnet(),
             // genesis contains empty alloc field because state at first bedrock block is imported
             // manually from trusted source
             genesis: serde_json::from_str(include_str!("../res/genesis/scroll.json"))

crates/scroll/chainspec/src/scroll_sepolia.rs

@@ -2,7 +2,7 @@
 
 use alloc::sync::Arc;
 
-use alloy_chains::{Chain, NamedChain};
+use alloy_chains::Chain;
 use alloy_primitives::b256;
 use reth_chainspec::{once_cell_set, ChainSpec};
 use reth_scroll_forks::ScrollHardfork;
@@ -13,7 +13,7 @@ use crate::{LazyLock, ScrollChainSpec};
 pub static SCROLL_SEPOLIA: LazyLock<Arc<ScrollChainSpec>> = LazyLock::new(|| {
     ScrollChainSpec {
         inner: ChainSpec {
-            chain: Chain::from_named(NamedChain::ScrollSepolia),
+            chain: Chain::scroll_sepolia(),
             genesis: serde_json::from_str(include_str!("../res/genesis/sepolia_scroll.json"))
                 .expect("Can't deserialize Scroll Sepolia genesis json"),
             genesis_hash: once_cell_set(b256!(