Add SFT train set (1.3M random trajectories)

.gitattributes

@@ -33,3 +33,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zip filter=lfs diff=lfs merge=lfs -text
 *.zst filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
+data/train_random.json filter=lfs diff=lfs merge=lfs -text

data/train_random.json

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e9cb06d19213f5bfbe4ec3a375b06fef231d1970edd355922857b0f1c3422226
+size 2633735115