Update root README — checkpoint-25000 logged

README.md

@@ -595,3 +595,14 @@ https://creativecommons.org/licenses/by-nc/4.0/
 **Epoch:** 0.701
 **Zone:** ⚠️ Overfit Risk
 **Status:** Training ongoing — auto-uploaded via train_v12.py
+
+---
+
+### 🔵 Checkpoint — Step 25,000
+**Date:** July 01, 2026 at 01:20 IST
+**Checkpoint:** checkpoint-25000
+**Step:** 25,000 / 40,000 (62.5% complete)
+**Loss:** 0.0601
+**Epoch:** 0.731
+**Zone:** ⚠️ Overfit Risk
+**Status:** Training ongoing — auto-uploaded via train_v12.py