fix: several small fixes

src/routes/+layout.svelte

@@ -25,18 +25,22 @@
   let { children } = $props();
 
   onMount(async () => {
-    // Initialize auth state (restore session from secure storage)
-    await auth.initialize();
-    isInitialized.set(true);
-
-    // Detect platform (Android needs global mini player)
+    // Detect platform first (synchronously, before any await) so the global
+    // mini player's Android visibility gate is correct from the first render.
+    // Android needs the global mini player because the library layout hides its
+    // own; if this ran after `await auth.initialize()` the store stayed false
+    // long enough that the mini player never appeared on library routes.
     try {
-      const platformName = await platform();
+      const platformName = platform();
       isAndroid.set(platformName === "android");
     } catch (err) {
       console.error("Platform detection failed:", err);
     }
 
+    // Initialize auth state (restore session from secure storage)
+    await auth.initialize();
+    isInitialized.set(true);
+
     // Initialize player event listener for push-based updates
     await initPlayerEvents();