Video records store url = /uploads/videos/<id>.mp4, but nothing served
that path: Next.js only serves static files from public/, so the
player's MP4 fallback 404'd and videos were unplayable until HLS
transcoding finished. (Thumbnails hit the same problem historically —
see scripts/update-thumbnail-urls.ts.)
Add a route handler at the exact stored URL so no DB migration is
needed. Unlike the HLS route it streams from disk via createReadStream
instead of buffering the file, and implements HTTP Range requests
(206/416, open-ended and suffix ranges) — browsers require ranges for
<video> seeking, and files can be multi-GB.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
twotalesanimation