Add video picker and Discord video attachments.

The picker accepts one MP4 or WebM, the thread lightbox zooms photos, and Discord gets the video as a file on a follow-up message so photo embeds still render.

internal/web/events.go

@@ -7,8 +7,26 @@ import (
 	"plumber/internal/store"
 )
 
-func (s *Server) publishPostCreated(post, root *store.Post, author *store.User) {
-	s.publishPost(events.PostCreated{PostEvent: s.postEvent(post, root, author)}, root)
+func (s *Server) publishPostCreated(post, root *store.Post, author *store.User, media []events.Media, cleanup func()) {
+	release := events.Once(func() {
+		closeHeldMedia(media)
+		if cleanup != nil {
+			cleanup()
+		}
+	})
+	if root != nil && root.PostState == store.PostStateHidden {
+		release()
+		return
+	}
+	ev := events.PostCreated{PostEvent: s.postEvent(post, root, author)}
+	if s.cfg.HoldUploadUntilDiscord && len(media) > 0 {
+		ev.Media = media
+		ev.Release = release
+		s.cfg.Events.Publish(context.Background(), ev)
+		return
+	}
+	release()
+	s.cfg.Events.Publish(context.Background(), events.PostCreated{PostEvent: ev.PostEvent})
 }
 
 func (s *Server) publishPostUpdated(post, root *store.Post, author *store.User) {
@@ -55,12 +73,10 @@ func (s *Server) postEvent(post, root *store.Post, author *store.User) events.Po
 	if n := len(post.Images); n > 0 {
 		ev.Images = make([]events.Image, 0, n)
 		for _, img := range post.Images {
-			if img.Kind == store.MediaKindVideo {
-				continue
-			}
 			ev.Images = append(ev.Images, events.Image{
 				URL:         img.PublicURL,
 				Description: img.Description,
+				Kind:        img.Kind,
 			})
 		}
 	}