fix: add process.exit() to scripts to prevent CI hangs

Scripts were not exiting after completion because open connections
(WebSocket/HTTP to Aztec node) kept the Node.js event loop alive.
This caused the CI workflow to hang indefinitely on the "Run local
network scripts" step.

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: critesjosh

scripts/deploy_account.ts

@@ -7,4 +7,9 @@ export async function deployAccount() {
     await deploySchnorrAccount();
 }
 
-deployAccount();
+deployAccount()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error("Error:", error);
+    process.exit(1);
+  });

scripts/deploy_contract.ts

@@ -77,9 +77,11 @@ async function main() {
     logger.info(`   - Sponsored FPC: ${sponsoredFPC.address}`);
 }
 
-main().catch((error) => {
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
     const logger = createLogger('aztec:aztec-starter');
     logger.error(`❌ Deployment failed: ${error.message}`);
     logger.error(`📋 Error details: ${error.stack}`);
     process.exit(1);
-});
+  });

scripts/fees.ts

@@ -163,7 +163,12 @@ async function main() {
     logger.info(`Transfer paid with fees from Sponsored FPC.`)
 }
 
-main();
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error("Error:", error);
+    process.exit(1);
+  });
 
 // from here: https://github.com/AztecProtocol/aztec-packages/blob/ecbd59e58006533c8885a8b2fadbd9507489300c/yarn-project/end-to-end/src/fixtures/utils.ts#L534
 function getL1WalletClient(rpcUrl: string, index: number) {

scripts/get_block.ts

@@ -11,4 +11,9 @@ async function main() {
     console.log(await block?.hash())
 }
 
-main();
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error("Error:", error);
+    process.exit(1);
+  });

scripts/interaction_existing_contract.ts

@@ -100,7 +100,9 @@ async function main() {
     logger.info("To join this game, another player would call join_game with the same game ID.");
 }
 
-main().catch((error) => {
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
     console.error("Error:", error);
     process.exit(1);
-});
+  });

scripts/multiple_wallet.ts

@@ -133,4 +133,9 @@ async function main() {
 
 }
 
-main();
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error("Error:", error);
+    process.exit(1);
+  });

scripts/profile_deploy.ts

@@ -23,4 +23,9 @@ async function main() {
     console.dir(profileTx, { depth: 2 });
 }
 
-main();
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error("Error:", error);
+    process.exit(1);
+  });