RSS/parameter configuration UI, feedparser migration, effective-params logging

Fix multi-stage Docker build for HF Spaces

HuggingFace Spaces deploy + Neo4j Aura support

RSS Stream C3b + HITL endpoint + frontend toggles

Wikidata inverse, Neo4j cache decoupled, auto-title, cross-article button, batch checkboxes, threshold 0.55

Add neo4j and cross article verification

Frontend multi-model — model dropdown in Analyze, flexible 2-selector Compare tab, modelLabels utility

Add frontend structure