Update app.py

app.py

@@ -20,6 +20,8 @@ IO_PATTERN = "*.jsonl"
 
 def read_jsonl_file(file_path):
     """Read a JSONL file and return a list of dictionaries."""
+    if not os.path.exists(file_path):
+        return []
     with open(file_path, "r") as f:
         lines = f.readlines()
     records = [json.loads(line) for line in lines]