Deleted approach: patch_model_runner.py, patch_xformers_sdpa_seq.py did
blind string replacement on base image files without reading full context.
New approach: read complete base source files from vllm/, apply fixes with
full context understanding, output complete modified files to qwen3_6_scripts/.
Files now replaced as complete copies (not patched):
- model_runner.py (1932 lines): prefix_cache_hit=False for Case 1
- xformers.py (821+80 lines): _run_sdpa_fallback + head_size>128 dispatch
- arg_utils.py (1143 lines): disable auto chunked-prefill for 32K+
- logits_processor.py (157 lines): seq_groups=None guard
patch_ops.sh rewritten: all python3 ./patch_*.py calls replaced with cp.
Remaining python3 calls: patch_transformers_qwen3_5.py, patch_vllm_qwen3_5.py,
patch_vllm_tool_parser.py — these register new model/parser classes in
__init__.py files, which is additive (not modification of existing code).
