bug fix hint retrieval

Author: patricebechard

src/agentlab/agents/generic_agent_hinter/generic_agent.py

@@ -321,7 +321,9 @@ def _get_task_hints(self) -> list[str]:
             if self.flags.hint_query_type == "goal":
                 query = self.obs_history[-1]["goal_object"][0]["text"]
             elif self.flags.hint_query_type == "llm":
-                query = self.llm.generate(self._prompt + self._abstract_ex + self._concrete_ex)
+                queries, _ = self._get_queries()
+                # HACK: only 1 query supported
+                query = queries[0]
             else:
                 raise ValueError(f"Unknown hint query type: {self.flags.hint_query_type}")