feat: implement peerDAS on electra

Author: g11tech

packages/params/src/forkName.ts

@@ -45,3 +45,9 @@ export type ForkBlobs = Exclude<ForkName, ForkPreBlobs>;
 export function isForkBlobs(fork: ForkName): fork is ForkBlobs {
   return isForkWithdrawals(fork) && fork !== ForkName.capella;
 }
+
+export type ForkPrePeerDAS = ForkPreBlobs | ForkName.deneb;
+export type ForkPeerDAS = Exclude<ForkName, ForkPrePeerDAS>;
+export function isForkPeerDAS(fork: ForkName): fork is ForkPeerDAS {
+  return isForkBlobs(fork) && fork !== ForkName.deneb;
+}