Re-encode videos before publishing

[ascpixi]

Ideally, we'd re-encode the videos so that users cannot upload corrupted video files that might do some wacky stuff. This needs a job system implementation.

[ascpixi]

This is gonna be a bit tough, because we'll probably need a video encoding daemon running that will handle all of the jobs. We'd have a BullMQ worker (possibly on a different server?) that would take in S3 videos (possibly encrypted), re-encode them w/ ffmpeg, save them somewhere else, and then nudge the Next.js server to update the video state.