feat(ui): rebrand to Meishi Music and wire up sidebar

- Rename application from TuneHub to Meishi Music in UI and PWA manifest
- Implement cache clearing logic to remove local storage items
- Pass sync state and handlers to the Sidebar component

index.html

@@ -361,7 +361,7 @@
                             <div className="w-10 h-10 bg-primary rounded-full flex items-center justify-center text-black font-bold text-xl">
                                 <i className="fa-solid fa-music"></i>
                             </div>
-                            <h1 className="text-xl font-bold tracking-tight">TuneHub</h1>
+                            <h1 className="text-xl font-bold tracking-tight">Meishi Music</h1>
                         </div>
                         
                         <div className="flex-1 py-4 overflow-y-auto">
@@ -1077,6 +1077,15 @@
                 return () => audio.removeEventListener('loadedmetadata', onLoadedMetadata);
             }, []);
 
+            const handleClearCache = () => {
+                localStorage.removeItem('th_playlist');
+                localStorage.removeItem('th_current');
+                localStorage.removeItem('th_favorites');
+                localStorage.removeItem('th_quality');
+                localStorage.removeItem('th_sync_token');
+                window.location.reload();
+            };
+
             // --- Render ---
 
             return (
@@ -1089,6 +1098,9 @@
                         quality={quality}
                         setQuality={setQuality}
                         onClearCache={handleClearCache}
+                        syncToken={syncToken}
+                        setSyncToken={setSyncToken}
+                        onSyncNow={handleSync}
                     />
 
                     {/* Top Navigation / Search Bar */}
@@ -1244,8 +1256,8 @@
     <!-- PWA Manifest Generation Script -->
     <script>
         const manifest = {
-            "name": "TuneHub Music",
+            "name": "Meishi Music",
-            "short_name": "TuneHub",
+            "short_name": "MeiShi",
             "start_url": ".",
             "display": "standalone",
             "background_color": "#111827",