sdk/solana: use pre-shim ntt-transceiver IDL when svmShims is not set

Support both the new shim-based transceiver (from commit a3a63d2)
and deployments using the older non-shim version.

cli/src/error.ts

@@ -4,7 +4,7 @@ import { chainToPlatform } from "@wormhole-foundation/sdk-base";
 
 /**
  * Handles RPC-related errors and provides helpful error messages with suggestions.
- * 
+ *
  * @param error - The error that occurred
  * @param chain - The chain being deployed to
  * @param network - The network (Mainnet, Testnet, Devnet)
@@ -18,7 +18,7 @@ export function handleRpcError(
 ): never {
   const errorMessage = error?.message || String(error);
   const errorStack = error?.stack || "";
-  
+
   // Check if this is an RPC-related error by looking for common RPC error indicators
   const isRpcError =
     errorMessage.toLowerCase().includes("jsonrpc") ||
@@ -28,7 +28,9 @@ export function handleRpcError(
     errorMessage.toLowerCase().includes("network error");
 
   if (isRpcError) {
-    console.error(chalk.red(`RPC connection error for ${chain} on ${network}\n`));
+    console.error(
+      chalk.red(`RPC connection error for ${chain} on ${network}\n`)
+    );
     console.error(chalk.yellow("RPC endpoint:"), chalk.white(rpc));
     console.error(chalk.yellow("Error:"), errorMessage);
     console.error();
@@ -42,31 +44,35 @@ export function handleRpcError(
         "You can specify a private RPC endpoint by creating an overrides.json file.\n"
       )
     );
-    console.error(chalk.cyan("Create a file named ") + chalk.white("overrides.json") + chalk.cyan(" in your project root:"));
-    console.error(chalk.white(`
+    console.error(
+      chalk.cyan("Create a file named ") +
+        chalk.white("overrides.json") +
+        chalk.cyan(" in your project root:")
+    );
+    console.error(
+      chalk.white(`
 {
   "chains": {
     "${chain}": {
       "rpc": "https://your-private-rpc-endpoint"
     }
   }
 }
-`));
-
+`)
+    );
+
     // Show chainlist.org only for EVM chains
     try {
       const platform = chainToPlatform(chain as any);
       if (platform === "Evm") {
         console.error(
-          chalk.cyan(
-            `Find RPC endpoints for ${chain}: https://chainlist.org`
-          )
+          chalk.cyan(`Find RPC endpoints for ${chain}: https://chainlist.org`)
         );
       }
     } catch (e) {
       // If chainToPlatform fails, just skip the platform-specific message
     }
-    
+
     console.error(
       chalk.cyan(
         `For more information about overrides.json:\n` +

sdk/route/src/types.ts

@@ -50,6 +50,10 @@ export namespace NttRoute {
     transceiver: TransceiverConfig[];
     quoter?: string;
     isWrappedGasToken?: boolean;
+    svmShims?: {
+      postMessageShimOverride?: string;
+      verifyVaaShimOverride?: string;
+    };
   };
 
   export type Config = {
@@ -206,6 +210,7 @@ export namespace NttRoute {
                 )!.address,
               },
               quoter: srcFound.quoter,
+              svmShims: srcFound.svmShims,
             },
             dstContracts: {
               token: dstFound.token,
@@ -215,6 +220,7 @@ export namespace NttRoute {
                   (v) => v.type === "wormhole"
                 )!.address,
               },
+              svmShims: dstFound.svmShims,
             },
           };
         }
@@ -252,6 +258,7 @@ export namespace NttRoute {
               .address,
           },
           quoter: remote.quoter,
+          svmShims: remote.svmShims,
         };
       }
     }