fix: sanitize profile updates before storing in chat memory pipeline

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

cogs/chat.py

@@ -171,6 +171,8 @@ class ChatCog(commands.Cog):
             # Update profile if warranted
             profile_update = result.get("profile_update")
             if profile_update:
+                # Sanitize before storing — strips any quoted toxic language
+                profile_update = await self.bot.llm.sanitize_notes(profile_update)
                 self.bot.drama_tracker.set_user_profile(user_id, profile_update)
                 self._dirty_users.add(user_id)