Update root README — checkpoint-17000 logged

README.md

@@ -452,3 +452,14 @@ https://creativecommons.org/licenses/by-nc/4.0/
 **Epoch:** 0.472
 **Zone:** 🎯 Sweet Spot
 **Status:** Training ongoing — auto-uploaded via train_v12.py
+
+---
+
+### 🔵 Checkpoint — Step 17,000
+**Date:** June 28, 2026 at 06:13 IST
+**Checkpoint:** checkpoint-17000
+**Step:** 17,000 / 40,000 (42.5% complete)
+**Loss:** 0.1117
+**Epoch:** 0.497
+**Zone:** ⚠️ Overfit Risk
+**Status:** Training ongoing — auto-uploaded via train_v12.py