CRITICAL: patch_ops.sh deploys qwen3_6_scripts/ files, NOT vllm/ files.
Previous bugfix only fixed vllm/worker/model_runner.py but the DEPLOYED
version (qwen3_6_scripts/model_runner.py) still had the bug.
Fix: max_decode_seq_len=max_encoder_seq_len → max_decode_seq_len=max_decode_seq_len
This ensures CUDA graph capture correctly checks actual decode sequence
length, not the encoder length (which is 0 for decoder-only Qwen3.6).
Discovery from reading CCCL adjacent_difference custom_policy_hub test:
the test showed that custom policy hubs OVERRIDE defaults. Our project
has the same pattern: qwen3_6_scripts/ overrides vllm/ via patch_ops.sh.
Therefore ALL fixes must go to qwen3_6_scripts/ to survive deployment.
CCCL file: cub/test/catch2_test_device_adjacent_difference_custom_policy_hub.cu