Add pruned_62k checkpoint (5.9 mAP, 30K weights zeroed, mAP improved), fix pruner naming

heads/cofiber_threshold/box32_92k/cofiber_threshold_box32_coco_8ep_pruned_62k.pth

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bcb34ee30c831e53c4d90a2e8c8997d2f6df9a0a95a4c46df0d982cc6fcc0429
+size 372635

heads/cofiber_threshold/box32_92k/cofiber_threshold_box32_coco_8ep_pruned_62k_eval.json

@@ -0,0 +1,8 @@
+{
+  "mAP_0.5_0.95": 0.05855484237101895,
+  "mAP_0.50": 0.20410501909047038,
+  "mAP_0.75": 0.014814163264790318,
+  "mAP_small": 0.02203082535241185,
+  "mAP_medium": 0.06371689189204269,
+  "mAP_large": 0.08569745781602053
+}

outputs/cofiber_threshold_v2/head_final_pruned_pruned.pth

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bcb34ee30c831e53c4d90a2e8c8997d2f6df9a0a95a4c46df0d982cc6fcc0429
+size 372635

outputs/cofiber_threshold_v2/head_final_pruned_pruned_coco_summary.json

@@ -0,0 +1,8 @@
+{
+  "mAP_0.5_0.95": 0.05855484237101895,
+  "mAP_0.50": 0.20410501909047038,
+  "mAP_0.75": 0.014814163264790318,
+  "mAP_small": 0.02203082535241185,
+  "mAP_medium": 0.06371689189204269,
+  "mAP_large": 0.08569745781602053
+}

prune.py

@@ -312,12 +312,13 @@ def main():
     head = prune(head, features, gt_data, locs, args.param,
                  passes=args.passes, batch_size=args.batch_size, threshold=args.threshold)
 
-    # Save
+    # Save — name by nonzero count, not input filename
+    total_nonzero = sum((p != 0).sum().item() for p in head.parameters())
+    nonzero_k = int(total_nonzero / 1000)
     out_dir = os.path.dirname(args.checkpoint)
-    base = os.path.basename(args.checkpoint).replace(".pth", "_pruned.pth")
-    out_path = os.path.join(out_dir, base)
+    out_path = os.path.join(out_dir, f"{args.head}_pruned_{nonzero_k}k.pth")
     torch.save(head.state_dict(), out_path)
-    print(f"\nSaved: {out_path}")
+    print(f"\nSaved: {out_path} ({total_nonzero:,} nonzero params)", flush=True)
 
 
 if __name__ == "__main__":