Dense-tier BF16 fix: kv_b_proj + shared_experts now stored as true BF16 (zai-original bytes, layout identical to lukealonso/GLM-5.2-NVFP4); their fp8 weight_scale tensors removed. Measured KLD-neutral at 2k context (0.211 vs 0.209, 5-run BF16-reference protocol); motivated by attention-path correctness at long context, convention alignment, and observed codegen quality. Serving note: fastsafetensors staging may load-OOM on the larger checkpoint at very high gpu-memory-utilization; plain safetensors loads fine.