Text-to-SQL GRPO Demo

Spider-style SQLite DBs + execution-based reward scoring (validity / execution / correctness).

This Space: Qwen2.5-3B + GRPO/QLoRA adapter (abhisheksutaria/qwen2.5-3b-grpo-text-to-sql).

Portfolio visitors should see real Qwen generation here, not the heuristic stub. Set Space secret ADAPTER_ID to your uploaded GRPO LoRA repo once training finishes.