New model_select dropdown with suggested VRAM in each label: huihui Qwen3-VL
4B(local)/8B/30B-A3B (transformers, auto-download) and HauhauCS Qwen3.5-9B /
Qwen3.6-35B-A3B Uncensored Aggressive (GGUF). model_path is now the manual
override (empty = use dropdown). agent_bridge gains --model-select/--model-path.
The HauhauCS models are GGUF-only (no safetensors) so the transformers backend
can't load them yet — selecting one returns a clear 'GGUF backend pending'
message until the backend is added.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>