Pin torch<2.10 to avoid CUDA 13 driver mismatch on A100 flavor

stage_candidates.py

@@ -1,12 +1,13 @@
 # /// script
 # requires-python = ">=3.10"
 # dependencies = [
-#   "torch>=2.4",
+#   "torch>=2.5,<2.10",  # 2.10+ requires CUDA 13 driver; A100 HF Jobs flavor ships CUDA 12.9
 #   "transformers>=4.46",
 #   "huggingface_hub>=0.26",
 #   "accelerate>=1.0",
 #   "sentencepiece",
 #   "protobuf",
+#   "bitsandbytes>=0.45,<0.50",  # for the 4-bit fallback path if we need it
 # ]
 # ///
 """Stage the 4 HSAQ candidate models on an L40S, extract architecture facts,