feat: add configurable HuggingFace search methods with Brave and Comfy-Org fallbacks
- Add new UI toggles for HF search methods: API search, Comfy-Org fallback, Brave fallback
- Integrate Brave Search API as a fallback for finding models on HuggingFace
- Add Comfy-Org author fallback search for authoritative sources
- Refactor HuggingFace search logic into modular helper functions
- Improve filename cleaning to handle fp4 and mixed precision formats
- Add brave_search_api_key, hf_use_api_search, hf_use_comfy_org_fallback, hf_use_brave_fallback settings
Dariusz L
b8515e1441