chore: add models example config

models.example.json

@@ -0,0 +1,15 @@
+{
+  "tavily_api_key": "tvly-xxxxxxxxxxxxxxxxxxxx",
+  "default_model": "your-model-name",
+  "models": [
+    {
+      "url": "https://api.example.com/v1",
+      "name": "your-model-name",
+      "apikey": "sk-xxxxxxxxxxxxxxxx",
+      "modes": "快速,思考",
+      "multimodal": "图片,视频",
+      "max_output": 8192,
+      "max_context": 128000
+    }
+  ]
+}