Merge pull request #679 from matdev83/fix/memory-leaks

fix: Address memory leaks

Author: matdev83

data/test_suite_state.json

@@ -1,4 +1,4 @@
 {
-  "test_count": 5046,
-  "last_updated": "1762217835.0"
+  "test_count": 5119,
+  "last_updated": "1762168167.0802596"
 }

src/core/repositories/in_memory_session_repository.py

@@ -77,8 +77,8 @@ async def update(self, entity: Session) -> Session:
             tracked_sessions = self._user_sessions.get(previous_user_id)
             if tracked_sessions and entity.id in tracked_sessions:
                 tracked_sessions.remove(entity.id)
-                if not tracked_sessions:
-                    del self._user_sessions[previous_user_id]
+            if not self._user_sessions[previous_user_id]:
+                del self._user_sessions[previous_user_id]
 
         if new_user_id:
             tracked_sessions = self._user_sessions.setdefault(new_user_id, [])