feat: add set_user_profile method to DramaTracker

Replaces the entire notes field with an LLM-generated profile summary,
used by the memory extraction system for permanent facts.

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

utils/drama_tracker.py

@@ -209,6 +209,11 @@ class DramaTracker:
         if len(lines) > 10:
             user.notes = "\n".join(lines[-10:])
 
+    def set_user_profile(self, user_id: int, profile: str) -> None:
+        """Replace the user's profile summary (permanent memory)."""
+        user = self.get_user(user_id)
+        user.notes = profile[:500]
+
     def clear_user_notes(self, user_id: int) -> None:
         self.get_user(user_id).notes = ""