feat: save watch progress

internal/templates/watch.templ

@@ -14,6 +14,7 @@ type WatchPageData struct {
 	MalID          int
 	Title          string
 	CurrentEpisode string
+	StartTimeSeconds float64
 	CurrentStatus  string
 	InitialMode    string
 	AvailableModes []string
@@ -192,10 +193,12 @@ templ VideoPlayer(data WatchPageData) {
 	{{ streamURL := buildStreamURL(data.InitialMode, data.ModeSources) }}
 	<div
 		class="flex flex-col gap-4 w-full"
+		data-mal-id={ fmt.Sprintf("%d", data.MalID) }
 		data-video-player
 		data-stream-url="/watch/proxy/stream"
 		data-preview-map-url="/watch/proxy/preview-map"
 		data-current-episode={ data.CurrentEpisode }
+		data-start-time-seconds={ fmt.Sprintf("%.3f", data.StartTimeSeconds) }
 		data-initial-mode={ data.InitialMode }
 		data-available-modes={ toJSON(data.AvailableModes) }
 		data-mode-sources={ toJSON(data.ModeSources) }