The quest engine built one hardcoded intrigue DAG regardless of theme
args — rng instantiated but never used. Now: three curated theme tables
(court/crypt/wilderness with a new TRAVEL_HAZARD node type) drive node
types, titles, prompts, skills, and factions; party level scales DCs
and rewards; length plans 8/10/12-node DAGs; seed drives all selection
deterministically. Unknown themes raise instead of silently
substituting; thin tables truncate with an explicit coverage_note
rather than padding with invented filler. Legacy call signature and
default output preserved. 20 red-first tests; suite at 527.
Co-Authored-By: Claude <[email protected]>
