[mm] sglang-mm: server vision pipeline core (fetch/driver/pipeline) + Qwen VL (#32364)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

rust/sglang-mm/tests/generate_golden.py

@@ -6,7 +6,7 @@ import numpy as np
 import torch
 from PIL import Image
 
-sys.path.insert(0, os.path.dirname(__file__))
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "bench"))
 from bench_parity import PS, make_photo_like, ref_patchify
 
 OUT = (