feat(evm): enable native ETH inputs on the escrow open flow

src/lib/abi/escrow.ts

@@ -408,7 +408,7 @@ export const SETTLER_ESCROW_ABI = [
       }
     ],
     outputs: [],
-    stateMutability: "nonpayable"
+    stateMutability: "payable"
   },
   {
     type: "function",

src/lib/components/InputTokenModal.svelte

@@ -74,9 +74,7 @@
     active = false;
   }
 
-  const uniqueInputTokens = $derived([
-    ...new Set(store.availableTokens.map((v) => v.name).filter((v) => v !== "eth"))
-  ]);
+  const uniqueInputTokens = $derived([...new Set(store.availableTokens.map((v) => v.name))]);
 
   // svelte-ignore state_referenced_locally
   let selectedTokenName = $state<string>(currentInputTokens[0].token.name);

src/lib/config.ts

@@ -399,7 +399,7 @@ export const coinList = (mainnet: boolean) => {
         address: ADDRESS_ZERO,
         name: "eth",
         chainId: arbitrumSepolia.id,
-        decimals: 6
+        decimals: 18
       },
       {
         address: `0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14`,

src/lib/libraries/intentExecution.ts

@@ -24,6 +24,7 @@ import { isTronChain } from "$lib/utils/chainType";
 import type { TxRef } from "$lib/utils/txRef";
 import { getTronReads, getTronSigner } from "$lib/tron/client";
 import { openEscrow as openTronEscrow } from "$lib/tron/writes";
+import { nativeValueOfInputs } from "$lib/tron/encode";
 import { getSolanaReads } from "$lib/solana/client";
 import { createSolanaPrograms } from "$lib/solana/program";
 import { getSolanaSigner } from "$lib/solana/wallet";
@@ -122,14 +123,16 @@ export async function openEscrowIntent(
     }
     await switchWalletChain(walletClient, Number(order.originChainId));
     const chain = getChain(order.originChainId);
+    const nativeValue = nativeValueOfInputs(order.inputs);
     return [
       await walletClient.writeContract({
         chain,
         account,
         address: INPUT_SETTLER_ESCROW_LIFI,
         abi: SETTLER_ESCROW_ABI,
         functionName: "open",
-        args: [order]
+        args: [order],
+        ...(nativeValue > 0n ? { value: nativeValue } : {})
       })
     ];
   }
@@ -142,6 +145,13 @@ export async function openEscrowIntent(
   if (tronComponent) {
     throw new Error("Multichain orders with Tron inputs are not supported");
   }
+  // The multichain settler's open is nonpayable, so native inputs cannot be escrowed.
+  const nativeComponent = components.find(
+    ({ orderComponent }) => nativeValueOfInputs(orderComponent.inputs) > 0n
+  );
+  if (nativeComponent) {
+    throw new Error("Multichain orders with native inputs are not supported");
+  }
   const results: `0x${string}`[] = [];
   for (const { chainId, orderComponent } of components) {
     const chain = getChain(chainId);