fix: Fish Audio走东京VPS反向代理，解决国内服务器无法直连问题

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/app/services/fish_audio_service.py

@@ -2,6 +2,11 @@ import os
 import requests
 
 
+PROXY_URL = 'http://202.182.125.133:8443/fish-api/v1/tts'
+PROXY_USER = 'fishproxy'
+PROXY_PASS = 'AO7C6SiovkRydkSHsUPJaOZw0CBh9mp0'
+
+
 def synthesize_fish_audio(text, speed=1.0, pitch=0, volume=1.0, emotion='neutral'):
     api_key = os.getenv('FISH_AUDIO_API_KEY', '')
     if not api_key:
@@ -20,9 +25,8 @@ def synthesize_fish_audio(text, speed=1.0, pitch=0, volume=1.0, emotion='neutral
     if tag:
         text = f"{tag}{text}"
 
-    url = 'https://api.fish.audio/v1/tts'
     headers = {
-        'Authorization': f'Bearer {api_key}',
+        'X-Fish-Auth': f'Bearer {api_key}',
         'Content-Type': 'application/json'
     }
 
@@ -34,7 +38,10 @@ def synthesize_fish_audio(text, speed=1.0, pitch=0, volume=1.0, emotion='neutral
         'volume': max(-20, min(20, (volume - 1.0) * 20)),
     }
 
-    response = requests.post(url, json=payload, headers=headers, timeout=60, stream=True)
+    response = requests.post(
+        PROXY_URL, json=payload, headers=headers,
+        auth=(PROXY_USER, PROXY_PASS), timeout=120
+    )
 
     if response.status_code != 200:
         raise Exception(f'Fish Audio API错误: {response.status_code} - {response.text[:200]}')