update:单模块部署xiaozhi-server，支持mcp调用摄像头识图

main/xiaozhi-server/core/utils/vllm.py

@@ -0,0 +1,23 @@
+import os
+import sys
+
+# 添加项目根目录到Python路径
+current_dir = os.path.dirname(os.path.abspath(__file__))
+project_root = os.path.abspath(os.path.join(current_dir, "..", ".."))
+sys.path.insert(0, project_root)
+
+from config.logger import setup_logging
+import importlib
+
+logger = setup_logging()
+
+
+def create_instance(class_name, *args, **kwargs):
+    # 创建LLM实例
+    if os.path.exists(os.path.join("core", "providers", "vllm", f"{class_name}.py")):
+        lib_name = f"core.providers.vllm.{class_name}"
+        if lib_name not in sys.modules:
+            sys.modules[lib_name] = importlib.import_module(f"{lib_name}")
+        return sys.modules[lib_name].VLLMProvider(*args, **kwargs)
+
+    raise ValueError(f"不支持的VLLM类型: {class_name}，请检查该配置的type是否设置正确")