SMALL→Qwen3.5-9B, add extra_body(enable_thinking=False) to HFLLM

Fix: use huggingface_hub InferenceClient as default backend

Switch to Qwen3-32B (BIG) and Qwen3-8B (SMALL) — confirmed working on HF API

Swap defaults: BIG→Qwen3.6-27B, SMALL→Qwen3.6-35B-A3B

Add HF Space for Build Small Hackathon

Initial commit: legawa multi-agent system for Indonesian legislators