Drop VLLM_USE_DEEP_GEMM=0 from vllm serve recipe (DeepGEMM is supported on Hopper and datacenter Blackwell)

Add base_model (#1)

Enable thinking by default in non-Hopper FP8-KV serve command

Update non-Hopper FP8-KV serve command and link to vLLM recipes page

Sync chat template with v5_1 (matches base/FP8/INT4)

Laguna XS.2 upload