feat(voice): add ChatGPT OAuth auth option

src/voice/cloudVoiceAuth.test.mjs

@@ -0,0 +1,29 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import {
+  CLOUD_VOICE_AUTH_STORAGE_KEY,
+  readStoredCloudVoiceAuthMode,
+  writeStoredCloudVoiceAuthMode,
+} from './cloudVoiceAuth.js';
+
+function memoryStorage(seed = {}) {
+  const values = new Map(Object.entries(seed));
+  return {
+    getItem: (key) => values.get(key) ?? null,
+    setItem: (key, value) => values.set(key, value),
+  };
+}
+
+test('cloud voice auth defaults to API key and persists OAuth independently', () => {
+  const storage = memoryStorage();
+  assert.equal(readStoredCloudVoiceAuthMode(storage), 'api-key');
+  assert.equal(writeStoredCloudVoiceAuthMode('oauth', storage), 'oauth');
+  assert.equal(readStoredCloudVoiceAuthMode(storage), 'oauth');
+  assert.equal(writeStoredCloudVoiceAuthMode('unknown', storage), 'api-key');
+  assert.equal(
+    readStoredCloudVoiceAuthMode(
+      memoryStorage({ [CLOUD_VOICE_AUTH_STORAGE_KEY]: 'oauth' }),
+    ),
+    'oauth',
+  );
+});