How the three-stage search works and why it needs no vector DB.
First, tags and titles are matched. Tag matches weigh 3x, title matches 2x. Critical nodes get a 30% relevance boost.
Only activates when Quick Search finds too few results. Searches full text of all nodes with diminishing returns (max 5 per word) and phrase bonuses.
With --with-relations each result shows its Knowledge Graph connections. See not just WHAT is relevant but WHY and HOW it connects.