feat: add timestamp functionality to service URLs in MusicPlayer

src/components/MusicPlayer.tsx

@@ -66,6 +66,23 @@ export function MusicPlayer() {
     return null
   }
 
+  const openServiceUrlWithTimestamp = (serviceUrl: string) => {
+    let urlWithTimestamp = serviceUrl
+    const currentTimeInSeconds = Math.floor(currentTime / 1000)
+    const separator = serviceUrl.includes('?') ? '&' : '?'
+    
+    // Add timestamp parameter based on service type
+    if (serviceUrl.includes('youtube.com') || serviceUrl.includes('youtu.be')) {
+      // YouTube timestamp format: &t=123s or ?t=123s
+      urlWithTimestamp = `${serviceUrl}${separator}t=${currentTimeInSeconds}s`
+    } else {
+      // For other services, try common timestamp parameter
+      urlWithTimestamp = serviceUrl
+    }
+    
+    window.open(urlWithTimestamp, '_blank')
+  }
+
   const handleVolumeChange = (e: React.ChangeEvent<HTMLInputElement>) => {
     const newVolume = parseFloat(e.target.value)
     setVolume(newVolume)
@@ -184,7 +201,7 @@ export function MusicPlayer() {
                       </DropdownMenuItem>
                     )}
                     {currentTrack?.service_url && (
-                      <DropdownMenuItem onClick={() => window.open(currentTrack.service_url, '_blank')}>
+                      <DropdownMenuItem onClick={() => openServiceUrlWithTimestamp(currentTrack.service_url!)}>
                         <Globe className="h-3 w-3" />
                         Open Service
                       </DropdownMenuItem>
@@ -367,7 +384,7 @@ export function MusicPlayer() {
                       </DropdownMenuItem>
                     )}
                     {currentTrack?.service_url && (
-                      <DropdownMenuItem onClick={() => window.open(currentTrack.service_url, '_blank')}>
+                      <DropdownMenuItem onClick={() => openServiceUrlWithTimestamp(currentTrack.service_url!)}>
                         <Globe className="h-4 w-4" />
                         Open Service
                       </DropdownMenuItem>