refactor: yarn codegen script

- use `ts-blank-space` since `tsx` is no longer in `node_modules/.bin`
- prefer yarn command instead of standalone script

packages/orchestration/package.json

@@ -60,6 +60,7 @@
     "@cosmjs/proto-signing": "^0.32.3",
     "@endo/bundle-source": "^3.4.2",
     "@endo/import-bundle": "^1.3.1",
+    "@endo/init": "^1.1.6",
     "@endo/ses-ava": "^1.2.7",
     "ava": "^5.3.1",
     "c8": "^9.1.0",

packages/orchestration/scripts/fetch-chain-info.ts

@@ -1,5 +1,7 @@
-#!/usr/bin/env tsx
+#!/usr/bin/env TS_BLANK_SPACE_EMIT=false node --import ts-blank-space/register
+
 /** @file Fetch canonical chain info to generate the minimum needed for agoricNames */
+import '@endo/init';
 import { ChainRegistryClient } from '@chain-registry/client';
 import fsp from 'node:fs/promises';
 import prettier from 'prettier';