feat: add block to payloadv1 (#1875)

* feat: add block to payloadv1

* take by ref

crates/rpc-types-engine/src/payload.rs

@@ -297,6 +297,35 @@ impl ExecutionPayloadV1 {
 
         Ok(Block { header, body: BlockBody { transactions, ommers: vec![], withdrawals: None } })
     }
+
+    /// Converts [`alloy_consensus::Block`] to [`ExecutionPayloadV1`].
+    ///
+    /// Note: This re-calculates the block hash.
+    pub fn from_block_slow<T: Encodable2718>(block: &Block<T>) -> Self {
+        Self::from_block_unchecked(block.hash_slow(), block)
+    }
+
+    /// Converts [`alloy_consensus::Block`] to [`ExecutionPayloadV1`] using the given block hash.
+    pub fn from_block_unchecked<T: Encodable2718>(block_hash: B256, block: &Block<T>) -> Self {
+        let transactions =
+            block.body.transactions().map(|tx| tx.encoded_2718().into()).collect::<Vec<_>>();
+        Self {
+            parent_hash: block.parent_hash,
+            fee_recipient: block.beneficiary,
+            state_root: block.state_root,
+            receipts_root: block.receipts_root,
+            logs_bloom: block.logs_bloom,
+            prev_randao: block.mix_hash,
+            block_number: block.number,
+            gas_limit: block.gas_limit,
+            gas_used: block.gas_used,
+            timestamp: block.timestamp,
+            base_fee_per_gas: U256::from(block.base_fee_per_gas.unwrap_or_default()),
+            extra_data: block.header.extra_data.clone(),
+            block_hash,
+            transactions,
+        }
+    }
 }
 
 impl<T: Decodable2718> TryFrom<ExecutionPayloadV1> for Block<T> {