director train: reuse collected scripts

kaggle/notebook_director_train.py

@@ -12,6 +12,7 @@ Everything runs out-of-process because transformers has to be upgraded to 5.x
 and this notebook already imported huggingface_hub to fetch the bundle.
 """
 import os
+import shutil
 import subprocess
 import sys
 
@@ -39,7 +40,15 @@ def main() -> None:
     if not os.path.exists(os.path.join(BUNDLE, "kaggle", "director_probe.py")):
         raise SystemExit("director_probe.py missing")
 
-    run("director_probe.py", MODE="collect", TARGET="160", MAX_TRIES="700")
+    # 160 scripts collected on the first attempt (68% acceptance); reuse them
+    # instead of paying 25 minutes of sampling again.
+    seed = os.path.join(BUNDLE, "director", "sft.jsonl")
+    if os.path.exists(seed):
+        os.makedirs("/kaggle/working/director", exist_ok=True)
+        shutil.copyfile(seed, "/kaggle/working/director/sft.jsonl")
+        print("reusing collected scripts", flush=True)
+    else:
+        run("director_probe.py", MODE="collect", TARGET="160", MAX_TRIES="700")
     if run("director_sft.py", EPOCHS="4", TRAIN_LAYERS="6") != 0:
         raise SystemExit("training failed")
     run("director_probe.py", MODE="eval", N_SAMPLES="12",