add ai image base

ai_service/llm/base.py

@@ -0,0 +1,37 @@
+from abc import ABC
+
+class MultiModalAICapability(ABC):
+    # 对话能力
+    async def chat(self, messages, **kwargs):
+        raise NotImplementedError("chat not supported by this provider")
+
+    async def stream_chat(self, messages, **kwargs):
+        raise NotImplementedError("stream_chat not supported by this provider")
+
+    # 图片生成能力
+    def create_image_task(self, prompt, **kwargs):
+        raise NotImplementedError("image generation not supported by this provider")
+
+    def fetch_image_task_status(self, task):
+        raise NotImplementedError("image task status not supported by this provider")
+
+    def fetch_image_result(self, task):
+        raise NotImplementedError("image result not supported by this provider")
+
+    # 视频生成能力
+    def create_video_task(self, prompt, **kwargs):
+        raise NotImplementedError("video generation not supported by this provider")
+
+    def fetch_video_task_status(self, task):
+        raise NotImplementedError("video task status not supported by this provider")
+
+    def fetch_video_result(self, task):
+        raise NotImplementedError("video result not supported by this provider")
+
+    # 知识库能力
+    def query_knowledge(self, query, **kwargs):
+        raise NotImplementedError("knowledge query not supported by this provider")
+
+    # 语音合成能力
+    def synthesize_speech(self, text, **kwargs):
+        raise NotImplementedError("speech synthesis not supported by this provider")