Story gains mediaType (IMAGE/VIDEO) plus the same Mux fields as
VideoPost (muxUploadId/AssetId/PlaybackId, videoStatus, durationSecs,
aspectRatio); storageKey becomes optional since video stories don't
use Supabase Storage.
- 30s duration cap (deliberately shorter than the 180s normal-post
cap) enforced client-side before upload (reads the file's own
duration) and again server-side in the mux webhook and
stories.getVideoStatus's self-heal path, so a bypassed client check
or a direct API call can't produce an oversized story video.
- MAX_STORY_VIDEO_DURATION_SECS lives in a new client-safe
src/lib/story-video-limits.ts rather than stories.ts, which is
server-only — importing from a server-only module into StoryForm
(a client component) pulled the pg driver into the client bundle
and broke the build.
- Mux webhook now resolves an asset to either a VideoPost or a Story;
video stories never fan out to the feed (mirrors the normal-post
webhook branch, minus fanOutPost).
- StoryViewer: video stories autoplay muted (tap to unmute — browsers
block autoplay-with-sound past the story that was directly clicked
open) with a real playback-time progress bar (image stories keep
the fixed 5s bar), rendered via object-contain to correctly handle
the ~9:16 portrait ratio typical of phone-shot story videos instead
of a fixed 16:9 box.