initial support for playlist modifiers

supported modifiers are --playlist-start, --playlist-end, --playlist-reverse, --max-downloads

server/common/types.go

@@ -0,0 +1,18 @@
+package common
+
+import "time"
+
+// Used to deser the yt-dlp -J output
+type DownloadInfo struct {
+	URL         string    `json:"url"`
+	Title       string    `json:"title"`
+	Thumbnail   string    `json:"thumbnail"`
+	Resolution  string    `json:"resolution"`
+	Size        int32     `json:"filesize_approx"`
+	VCodec      string    `json:"vcodec"`
+	ACodec      string    `json:"acodec"`
+	Extension   string    `json:"ext"`
+	OriginalURL string    `json:"original_url"`
+	FileName    string    `json:"filename"`
+	CreatedAt   time.Time `json:"created_at"`
+}