[V1][Core] Support for Structured Outputs

.buildkite/test-pipeline.yaml

@@ -204,6 +204,7 @@ steps:
     - VLLM_USE_V1=1 pytest -v -s v1/engine
     - VLLM_USE_V1=1 pytest -v -s v1/sample
     - VLLM_USE_V1=1 pytest -v -s v1/worker
+    - VLLM_USE_V1=1 pytest -v -s v1/structured_output
     - VLLM_USE_V1=1 pytest -v -s v1/test_stats.py
     - VLLM_USE_V1=1 pytest -v -s v1/test_utils.py
     # TODO: accuracy does not match, whether setting

.gitignore

@@ -197,7 +197,7 @@ _build/
 hip_compat.h
 
 # Benchmark dataset
-benchmarks/*.json
+benchmarks/**/*.json
 
 # Linting
 actionlint