fix: truncate message content and image data to improve processing efficiency

ai/processor.py

@@ -91,7 +91,7 @@ class AIProcessor:
                 cps = [
                     aic.Message(
                         role=msg.role,
-                        content=msg.content,
+                        content=msg.content[:80],
                         image=msg.image[:20] if isinstance(msg.image, str) else None,  # type: ignore
                         disable_image=msg.disable_image,
                         name=msg.name,