Add metadata for batch 45

batch_45_metadata.json

@@ -0,0 +1,7 @@
+{
+  "upload_time": "2025-06-23T08:14:10.382007",
+  "total_trees": 452,
+  "new_trees": 10,
+  "batch_number": 45,
+  "upload_interval": 30
+}