test(release-cleanup): 補上結束碼、sanitizeBody 與 logger 輸出測試

新增子行程驗證 index.js 失敗時以非零狀態結束、fetchAllPages 錯誤訊息
清理控制字元與長度限制、以及 logger 各輸出函式格式與 stdout/stderr 分流測試。
測試共 56 項全數通過。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/test/logger.test.js

@@ -1,11 +1,65 @@
 import { test, afterEach } from 'node:test'
 import assert from 'node:assert/strict'
-import { failError } from '../logger.js'
+import {
+  separator,
+  section,
+  info,
+  success,
+  warn,
+  fail,
+  failError,
+} from '../logger.js'
 
 const realWrite = process.stderr.write
+const realStdoutWrite = process.stdout.write
 
 afterEach(() => {
   process.stderr.write = realWrite
+  process.stdout.write = realStdoutWrite
+})
+
+// 攔截寫入 stdout 的內容
+function captureStdout(fn) {
+  const chunks = []
+  process.stdout.write = (chunk) => {
+    chunks.push(String(chunk))
+    return true
+  }
+  try {
+    fn()
+  } finally {
+    process.stdout.write = realStdoutWrite
+  }
+  return chunks.join('')
+}
+
+test('info/success/warn 以正確前綴寫入 stdout', () => {
+  assert.equal(captureStdout(() => info('hi')), '[INFO] hi\n')
+  assert.equal(captureStdout(() => success('ok')), '[OK]   ok\n')
+  assert.equal(captureStdout(() => warn('careful')), '[WARN] careful\n')
+})
+
+test('separator 輸出等號分隔線', () => {
+  const out = captureStdout(() => separator())
+  assert.match(out, /^\n={50}\n$/)
+})
+
+test('section 輸出分隔線、標題與虛線', () => {
+  const out = captureStdout(() => section('參數檢查'))
+  assert.match(out, /={50}\n參數檢查\n-{50}\n/)
+})
+
+test('fail 寫入 stderr 而非 stdout', () => {
+  const stdout = captureStdout(() => {
+    const chunks = []
+    process.stderr.write = (chunk) => {
+      chunks.push(String(chunk))
+      return true
+    }
+    fail('boom')
+    assert.equal(chunks.join(''), '[ERR]  boom\n')
+  })
+  assert.equal(stdout, '') // fail 不應寫入 stdout
 })
 
 // 攔截寫入 stderr 的內容