Update root README — checkpoint-8000 logged

README.md

@@ -210,3 +210,14 @@ https://creativecommons.org/licenses/by-nc/4.0/
 **Epoch:** 0.205
 **Zone:** ⚠️ Overfit Risk
 **Status:** Training ongoing — auto-uploaded via train_v12.py
+
+---
+
+### 🔵 Checkpoint — Step 8,000
+**Date:** June 25, 2026 at 09:05 IST
+**Checkpoint:** checkpoint-8000
+**Step:** 8,000 / 40,000 (20.0% complete)
+**Loss:** 0.2105
+**Epoch:** 0.234
+**Zone:** 🎯 Sweet Spot
+**Status:** Training ongoing — auto-uploaded via train_v12.py