fix: Update image handling in process method; ensure only the last two messages retain images and improve debugging output

ai/processor.py

@@ -75,16 +75,17 @@ class AIProcessor:
                         processor=self,
                     )
                     outputs.append(r) if r else None
-                # Make sure the two last messages from user has an image, but set disable_image to True for the others
-                for msg in self.session.messages[:-2]:
-                    msg.image = None
+                # Make sure every images except the two last are removed
+                for msg in self.session.messages[:-3]:
+                    if msg.image and not msg.disable_image:
+                        msg.image = None
                 # copy of self.session.messages, but shorten the image data for better debugging
                 cps = [
                     aic.Message(
                         role=msg.role,
                         content=msg.content,
                         image=msg.image[:20] if isinstance(msg.image, str) else None,  # type: ignore
-                        disable_image=True,
+                        disable_image=msg.disable_image,
                         name=msg.name,
                     )
                     for msg in self.session.messages