Add expansion metadata

expanded-from-scugnizz-1b/expand_metadata.json

@@ -0,0 +1,31 @@
+{
+  "created_at": "2026-07-04 08:22:51",
+  "target_params": 2648194560,
+  "source_repo_id": "Daisuke675/scugnizz-1b",
+  "source_ckpt": "training-runs/pretrain-1b/checkpoint_best.pt",
+  "target_repo_id": "Daisuke675/scugnizz-3b",
+  "target_path": "expanded-from-scugnizz-1b/checkpoint_init_3b.pt",
+  "old_config": {
+    "vocab_size": 50257,
+    "block_size": 1024,
+    "n_layer": 24,
+    "n_head": 16,
+    "n_embd": 2048,
+    "dropout": 0.1,
+    "bias": false,
+    "pcs_a": 0.8309193524478643,
+    "pcs_b": 0.0
+  },
+  "new_config": {
+    "vocab_size": 50257,
+    "block_size": 1024,
+    "n_layer": 32,
+    "n_head": 20,
+    "n_embd": 2560,
+    "dropout": 0.0,
+    "bias": false,
+    "pcs_a": 0.8309193524478643,
+    "pcs_b": 0.0
+  },
+  "warning": "Expanded checkpoint requires continued pretraining; do not treat as trained 3B model."
+}