The /api/admin/ghosts endpoint returns raw DB rows (webm_path,
webp_path, image_path as bare filenames), not the public API's
camelCase URL shape. buildGhost now reads those and prefixes /uploads/,
so WebM video renders in the preview instead of falling through to the
procedural wisp.
Camera-background single-ghost preview reusing the hunt's render path
(WebM VP9+alpha VideoTexture -> WebP/GIF -> procedural wisp). Login gate
matches admin; ghost list via JWT-protected /api/admin/ghosts. Dropdown
to pick a ghost, sliders for distance/size, camera toggle.
jessikitty