Add 1 log entries

Session: 18511feb-78e4-4e3a-b462-0a73f171d639, Time: 2025-07-15T13:47:36.499Z

logs/2025-07-15/logs-2025-07-15T13-47-36-498Z-18511feb-78e4-4e3a-b462-0a73f171d639.jsonl

@@ -0,0 +1 @@
+{"level":30,"time":1752587244490,"msg":"Test fourth message (should trigger batch)","test":"basic"}