fix(dreamer): use correct filter syntax for surprisal level query

The surprisal observation fetch passed a list directly as the filter
value ({"level": [...]}), which generated invalid SQL (level = ARRAY)
instead of level IN (...). Use the {"in": [...]} operator syntax.

Author: offendingcommit

src/dreamer/surprisal.py

@@ -236,7 +236,7 @@ async def _fetch_recent_observations(
         workspace_name=workspace_name,
         observer=observer,
         observed=observed,
-        filters={"level": levels} if levels else None,
+        filters={"level": {"in": levels}} if levels else None,
         limit=limit,
     )