feat: 修改drawing 为django 接口

backend/ai/llm/adapter/genai.py

@@ -0,0 +1,21 @@
+# 假设有 google genai sdk
+# from google_genai import GenAI
+from llm.base import MultiModalAICapability
+
+
+class GoogleGenAIAdapter(MultiModalAICapability):
+    def __init__(self, api_key, model, **kwargs):
+        self.api_key = api_key
+        self.model = model
+        # self.llm = GenAI(api_key=api_key, model=model)
+
+    async def chat(self, messages, **kwargs):
+        # return await self.llm.chat(messages)
+        raise NotImplementedError("Google GenAI chat未实现")
+
+    async def stream_chat(self, messages, **kwargs):
+        # async for chunk in self.llm.stream_chat(messages):
+        #     yield chunk
+        raise NotImplementedError("Google GenAI stream_chat未实现")
+
+    # 其他能力同理