Add localhost->127.0.0.1 fallback for transcription fetch

src/models/media.test.ts

@@ -460,6 +460,28 @@ describe('transcribeAudio', () => {
     expect(global.fetch).toHaveBeenCalledTimes(2);
   });
 
+  it('falls back from localhost to 127.0.0.1 on transient fetch failures', async () => {
+    vi.mocked(global.fetch)
+      .mockRejectedValueOnce(new TypeError('fetch failed'))
+      .mockResolvedValueOnce({
+        ok: true,
+        json: async () => ({ text: mockTranscript }),
+      } as Response);
+
+    const config: AudioTranscriptionConfig = {
+      endpoint: 'http://localhost:18801/v1/audio/transcriptions',
+      apiKey: 'test-key',
+      model: 'test-model',
+    };
+
+    const result = await transcribeAudio(oggAudioAttachment, config);
+
+    expect(result).toBe(mockTranscript);
+    expect(global.fetch).toHaveBeenCalledTimes(2);
+    expect(vi.mocked(global.fetch).mock.calls[0]?.[0]).toBe('http://localhost:18801/v1/audio/transcriptions');
+    expect(vi.mocked(global.fetch).mock.calls[1]?.[0]).toBe('http://127.0.0.1:18801/v1/audio/transcriptions');
+  });
+
   // Positive: uses Whisper-1 model by default.
   it('uses whisper-1 model by default', async () => {
     const config: AudioTranscriptionConfig = {