Update root README — checkpoint-27000 logged

README.md

@@ -617,3 +617,14 @@ https://creativecommons.org/licenses/by-nc/4.0/
 **Epoch:** 0.760
 **Zone:** ⚠️ Overfit Risk
 **Status:** Training ongoing — auto-uploaded via train_v12.py
+
+---
+
+### 🔵 Checkpoint — Step 27,000
+**Date:** July 01, 2026 at 15:25 IST
+**Checkpoint:** checkpoint-27000
+**Step:** 27,000 / 40,000 (67.5% complete)
+**Loss:** 0.1404
+**Epoch:** 0.789
+**Zone:** 🎯 Sweet Spot
+**Status:** Training ongoing — auto-uploaded via train_v12.py