fix: Do not append query params quality=medium to videos that are about to premiere (#5755)

* fix: Do not append query params `quality=medium` to videos that are about to premiere

Video premieres do not have `audio_streams` and they aren't `video.live_now == true` either,
therefore we skip the checks that are made for older videos (`if audio_streams.empty? && !video.live_now` closure)
if the video is a premiere.

This commit also adds the `microformat` field to the `info` instance
variable of the `Video` struct, since it's needed for the function
`Video#premiere_timestamp : Time?`. This is more like a quick fix than a
proper fix because in `Invidious::Videos::Parser#parse_video_info`,
`premiere_timestamp` is gathered from the `microformat` JSON Object but
is used to set the `published` hash key for the `params` variable.

The parsers and structs really need a rework :/

* Revert "fix: Do not append query params `quality=medium` to videos that are about to premiere"

This reverts commit 5cfc8dace8.

* chore: build premiere_timestamp using video_type and published time

src/invidious/routes/watch.cr

@@ -129,6 +129,8 @@ module Invidious::Routes::Watch
     video_streams = video.video_streams
     audio_streams = video.audio_streams
 
+    # Videos that are a premiere do not have audio streams.
+    if video.premiere_timestamp.nil?
       # Older videos may not have audio sources available.
       # We redirect here so they're not unplayable
       if audio_streams.empty? && !video.live_now
@@ -142,6 +144,7 @@ module Invidious::Routes::Watch
           return env.redirect "/watch?#{env.params.query}"
         end
       end
+    end
 
     captions = video.captions
 

src/invidious/videos.cr

@@ -81,10 +81,11 @@ struct Video
   end
 
   def premiere_timestamp : Time?
-    info
-      .dig?("microformat", "playerMicroformatRenderer", "liveBroadcastDetails", "startTimestamp")
+    if self.video_type == VideoType::Scheduled
+      return info["published"]?
         .try { |t| Time.parse_rfc3339(t.as_s) }
     end
+  end
 
   def related_videos
     info["relatedVideos"]?.try &.as_a.map { |h| h.as_h.transform_values &.as_s } || [] of Hash(String, String)