feat(fam-edge): 云端模型调用统计 - 新增 model_calls 表(provider/model/时间/耗时/成功/失败原因)，gemini/nvidia 每次请求经 model_call_hook 记录并随 sync delta 下发；gemini 支持模型级 model_timeouts（lite 实测22.6s×4≈90s）

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

@@ -11,7 +11,9 @@ SDK: openai (NIM 兼容 OpenAI API 规范)
 import os
 import json
 import re
+import time
 import requests
+from datetime import datetime
 from typing import Dict, List, Optional
 
 from .base_adapter import BaseModelAdapter
@@ -144,6 +146,8 @@ class NvidiaVisionAdapter(BaseModelAdapter):
             return None
 
         prompt = self._build_video_prompt(known_members_context, event_start_time)
+        started = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
+        t0 = time.time()
         try:
             resp = self._client.chat.completions.create(
                 model=self.model_name,
@@ -158,16 +162,20 @@ class NvidiaVisionAdapter(BaseModelAdapter):
                 extra_body={"media_io_kwargs": {"video": {"num_frames": 128}}},
                 timeout=self.timeout
             )
+            duration = time.time() - t0
             content = resp.choices[0].message.content
             if not content:
+                self._emit_model_call(self.model_name, started, duration, False, "empty_content")
                 logger.warning("NVIDIA 视频分析返回空 content")
                 self._cb.record_failure()
                 return None
             data = self._parse_json(content)
             if not data or 'events' not in data:
+                self._emit_model_call(self.model_name, started, duration, False, "json_parse_failed")
                 logger.warning(f"NVIDIA 视频 JSON 解析失败: {content[:150]}")
                 self._cb.record_failure()
                 return None
+            self._emit_model_call(self.model_name, started, duration, True)
             self._cb.record_success()
             logger.info(f"NVIDIA 整视频分析完成，events={len(data.get('events', []))}")
             return {
@@ -177,6 +185,8 @@ class NvidiaVisionAdapter(BaseModelAdapter):
                 "compute_provider": "nvidia",
             }
         except Exception as e:
+            duration = time.time() - t0
+            self._emit_model_call(self.model_name, started, duration, False, str(e))
             self._cb.record_failure()
             logger.warning(f"NVIDIA 视频分析异常: {e}")
             return None