Add raw prediction manifest for 2025-05

predictions/raw_2025/month=05/manifest.json

@@ -0,0 +1,12 @@
+{
+  "format": "ASR_CYGNSS_RAW_PREDICTIONS_2025_V2",
+  "created_utc": "2026-08-02T05:24:52.515524+00:00",
+  "month": "2025-05",
+  "rows": 986996,
+  "source_collocation": "data/collocations/year=2025/month=05/part-000.parquet",
+  "remote_path": "predictions/raw_2025/month=05/part-000.parquet",
+  "sha256": "a68cba4035a3a011ad73fa765938dbd7bc34be88acb10c7bab108b6a6a05c77e",
+  "bytes": 66213252,
+  "time_min_sec_since_2015": 325989036.749261,
+  "time_max_sec_since_2015": 328659181.249261
+}