fix: 优化架构

engine/adapters/llm/base.py

@@ -0,0 +1,12 @@
+from __future__ import annotations
+
+from typing import Any
+
+
+class BaseLLM:
+    def generate_script(self, prompt: str, context: dict[str, Any] | None = None) -> Any:
+        raise NotImplementedError
+
+    def refine_scene(self, scene: Any, context: dict[str, Any] | None = None) -> Any:
+        raise NotImplementedError
+