fix ESM compat

packages/rpc/index.ts

@@ -1,3 +1,3 @@
 /* eslint-disable import/extensions */
-export * from './src/chainStorageWatcher';
-export * from './src/types';
+export * from './src/chainStorageWatcher.js';
+export * from './src/types.js';

packages/rpc/src/chainStorageWatcher.ts

@@ -1,9 +1,9 @@
 /* eslint-disable no-use-before-define */
 /* eslint-disable import/extensions */
-import { makeClientMarshaller } from './marshal';
-import { AgoricChainStoragePathKind } from './types';
-import { vstorageQuery, keyToPath, pathToKey } from './vstorageQuery';
-import type { UpdateHandler } from './types';
+import { makeClientMarshaller } from './marshal.js';
+import { AgoricChainStoragePathKind } from './types.js';
+import { vstorageQuery, pathToKey } from './vstorageQuery.js';
+import type { UpdateHandler } from './types.js';
 
 type Subscriber<T> = {
   onUpdate: UpdateHandler<T>;

packages/rpc/src/vstorageQuery.ts

@@ -3,7 +3,7 @@ import axios from 'axios';
 // eslint-disable-next-line import/no-extraneous-dependencies
 import axiosRetry from 'axios-retry';
 import type { FromCapData } from '@endo/marshal';
-import { AgoricChainStoragePathKind } from './types';
+import { AgoricChainStoragePathKind } from './types.js';
 
 export const pathToKey = (path: [AgoricChainStoragePathKind, string]) =>
   path.join('.');

packages/rpc/test/chainStorageWatcher.test.ts

@@ -2,9 +2,9 @@
 /* eslint-disable import/extensions */
 import { expect, it, describe, beforeEach, vi, afterEach } from 'vitest';
 import MockAdapter from 'axios-mock-adapter';
-import { makeAgoricChainStorageWatcher } from '../src/chainStorageWatcher';
-import { axiosClient } from '../src/vstorageQuery';
-import { AgoricChainStoragePathKind } from '../src/types';
+import { makeAgoricChainStorageWatcher } from '../src/chainStorageWatcher.js';
+import { axiosClient } from '../src/vstorageQuery.js';
+import { AgoricChainStoragePathKind } from '../src/types.js';
 
 global.harden = val => val;
 

packages/rpc/vitest.config.ts

@@ -1,7 +1,7 @@
 /* eslint-disable import/extensions */
 import { mergeConfig } from 'vite';
 import { defineConfig } from 'vitest/config';
-import viteConfig from './vite.config';
+import viteConfig from './vite.config.js';
 
 export default mergeConfig(
   viteConfig,

packages/web-components/src/dapp-wallet-bridge/DappWalletBridge.js

@@ -3,7 +3,7 @@ import { html, LitElement } from 'lit';
 import { assert, details as X } from '@agoric/assert';
 
 // Ambient types. https://github.com/Agoric/agoric-sdk/issues/6512
-import '@agoric/zoe/src/zoeService/types';
+import '@agoric/zoe/src/zoeService/types.js';
 
 // This site tells the component the URL to load the wallet bridge from. For
 // development, the form on this site can be changed to point the dapp to a