fix(fam-edge): 模型调用 started_at 改北京时间(UTC+8) - 原 datetime.now() 取 Oracle UTC 导致前端模型统计时间差 8 小时

fam-edge/src/fam_edge/model_adapters/nvidia_adapter.py

@@ -13,7 +13,7 @@ import json
 import re
 import time
 import requests
-from datetime import datetime
+from datetime import datetime, timezone, timedelta
 from typing import Dict, List, Optional
 
 from .base_adapter import BaseModelAdapter
@@ -168,7 +168,7 @@ class NvidiaVisionAdapter(BaseModelAdapter):
             model_timeout = self.model_timeouts.get(model, self.timeout)
             logger.info(f"NVIDIA 模型链 [{idx+1}/{len(self.model_chain)}] "
                         f"尝试 {model}（超时 {model_timeout}s）")
-            started = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
+            started = datetime.now(timezone(timedelta(hours=8))).strftime('%Y-%m-%d %H:%M:%S')
             t0 = time.time()
             try:
                 resp = self._client.chat.completions.create(