feat: Add remover for old tasks

remove_old_tasks.py

@@ -0,0 +1,29 @@
+import datetime
+import logging
+
+from src.db import AnalyzeTask, TaskStatus, DBSession
+from src.settings import MESSAGE_TTL, init_logging
+
+
+REMOVE_MULTIPLIER = 3
+
+
+def main():
+    session = DBSession()
+    count = (
+        session.query(AnalyzeTask)
+        .filter(
+            AnalyzeTask.status == TaskStatus.InQueue,
+            AnalyzeTask.created_at + REMOVE_MULTIPLIER * MESSAGE_TTL
+            < datetime.datetime.now().timestamp(),
+        )
+        .delete()
+    )
+    session.commit()
+    session.close()
+    logging.info(f"deleted {count} old in_queue tasks")
+
+
+if __name__ == "__main__":
+    init_logging()
+    main()