Update root README — checkpoint-22000 logged

README.md

@@ -540,3 +540,14 @@ https://creativecommons.org/licenses/by-nc/4.0/
 **Epoch:** 0.625
 **Zone:** 🎯 Sweet Spot
 **Status:** Training ongoing — auto-uploaded via train_v12.py
+
+---
+
+### 🔵 Checkpoint — Step 22,000
+**Date:** June 30, 2026 at 00:08 IST
+**Checkpoint:** checkpoint-22000
+**Step:** 22,000 / 40,000 (55.0% complete)
+**Loss:** 0.2471
+**Epoch:** 0.643
+**Zone:** 🎯 Sweet Spot
+**Status:** Training ongoing — auto-uploaded via train_v12.py