phase4_prep: repin to b6210a29 (per-rank post-train marks + readable probe failures)

kernels/phase4_prep.py

@@ -13,7 +13,7 @@ import hashlib, json, os, subprocess, sys, time
 
 os.chdir("/kaggle/working")
 sys.path.insert(0, "/kaggle/working")
-REV = os.environ.get("OUNCE100M_REV") or "5889e40c446ce96f549de105c9984c2ddd63588e"
+REV = os.environ.get("OUNCE100M_REV") or "b6210a298619be7534b4a06e722bd31592f5d986"
 WANT = {
   "ounce100m_credentials.py": ("ounce100m_credentials.py",
                                "6525f62f03f2d73650a1eb4f70fcb52d1194caad4ca88b2d8bd8fd54f88339b6"),
@@ -22,9 +22,9 @@ WANT = {
   "hubckpt.py": ("train/hubckpt.py",
                  "d4b50ed0928c678c94ce6764612a4655f2959c0a7b91d6fd588e8efddff298b2"),
   "train_ounce100m.py": ("train/train_ounce100m.py",
-                         "34d541785ac2aa94038b463d5595334b1937c427698fcf2e10134f34cbf91888"),
+                         "d795bb388dab42be5efedf133d0124265b3a0c60ddd8f5c375986a85de70b954"),
   "phase4_session.py": ("kernels/phase4_session.py",
-                        "3aeec75e6a2d66088797e762a23703b5cc1cf6b7447bc607c60523d3ac637a24"),
+                        "1bb866aeccf4dcd37b112ea5610cfa8af4694bf7ba070bfe0619e62c970a5d9b"),
 }
 BASE = "https://huggingface.co/Cion-lab/ounce100m-code/resolve/" + REV
 for p, (rp, want) in sorted(WANT.items()):