search() falls back to safe per-token quoting on malformed FTS input instead of
crashing (documented in api-reference.md). Adds raw() to the doc-synced shape
contract. Full suite 107/107.
Extract helper API documentation into a standalone api-reference.md and
reduce schema.md to a compact field/join/table map for raw SQL work.
Add a Reference Map table to SKILL.md for quick routing by task type.
tommy0103