Fix JSON output corruption from API log noise

- Redirect console.log to stderr before importing @actual-app/api
  so breadcrumb/sync messages don't mix with JSON output
- Use groupId (not cloudFileId) for downloadBudget sync ID
- Fix setup.sh to display and select groupId

scripts/actual-query.mjs

@@ -1,9 +1,18 @@
 #!/usr/bin/env node
 
+// Redirect console.log to stderr so API noise doesn't corrupt JSON output
+const _origLog = console.log;
+console.log = (...args) => console.error(...args);
+
 import * as fs from 'fs';
 import * as path from 'path';
 import * as api from '@actual-app/api';
 
+// Restore console.log only for our own output function
+function output(data) {
+  _origLog(JSON.stringify(data, null, 2));
+}
+
 const CONFIG_DIR = path.join(process.env.HOME, '.config', 'actual-budget');
 const CONFIG_FILE = path.join(CONFIG_DIR, 'config');
 const PASSWORD_FILE = path.join(CONFIG_DIR, 'password');
@@ -53,10 +62,6 @@ async function initialize(config) {
   await api.downloadBudget(config.ACTUAL_SYNC_ID);
 }
 
-function output(data) {
-  console.log(JSON.stringify(data, null, 2));
-}
-
 async function main() {
   const [command, ...args] = process.argv.slice(2);