fix query with aggregation

src/jobflow_remote/fireworks/launchpad.py

@@ -357,6 +357,8 @@ def generate_id_query(
         if job_id:
             query[FW_UUID_PATH] = job_id
             if job_index is None:
+                # note: this format is suitable for collection.find(sort=.),
+                # but not for $sort in an aggregation.
                 sort = [[FW_INDEX_PATH, DESCENDING]]
             else:
                 query[FW_INDEX_PATH] = job_index
@@ -623,7 +625,7 @@ def get_remote_run(
             msg = f"No Remote run exists with fw id: {fw_id} or job_id {job_id}"
             if job_index is not None:
                 msg += f" and job index {job_index}"
-        raise ValueError(msg)
+                raise ValueError(msg)
 
         return RemoteRun.from_db_dict(remote_dict)
 

src/jobflow_remote/jobs/jobcontroller.py

@@ -337,6 +337,9 @@ def get_job_info(
                     f"{REMOTE_DOC_PATH}.error": 1,
                 }
             )
+            if sort:
+                # needs to be converted when used in an aggregation
+                sort = dict(sort)
             data = list(
                 self.rlpad.get_fw_launch_remote_run_data(
                     query=query, projection=proj, sort=sort, limit=1