1a6ffc74a1
Gate the universe on one clip per altitude + connecting morphs (~126 MB, ~10-20s), then grow the pool in the background. The random pick (pickPoolClip/pickRandomMember) is restricted to fully-loaded clips — base + connecting morphs both ways cached (HEFPreload.eligibleDestinations) — so a transition never stalls on un-downloaded media and new clips become reachable only once fully loaded. Pure planner in preload.js (+ node tests). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>