MODEL_BACKEND=minimax              # minimax | vllm | replay
MINIMAX_API_KEY=                   # required when MODEL_BACKEND=minimax
VLLM_ENDPOINT=http://localhost:8000/v1   # required when MODEL_BACKEND=vllm — vLLM serves at /v1/chat/completions
REPLAY_SCENARIO_ID=                # required when MODEL_BACKEND=replay (or pass to get_llm())
PARQUET_DIR=data/parquet           # default
SEMANTIC_LAYER_PATH=data/semantic_layer.yml

# Local Postgres source for `scripts/build_dev_parquet.py` (writes data/dev/*.parquet)
DEV_PG_DSN=postgresql://user:password@localhost:5432/dbname