feat: randomized home greetings (music-themed, EN)

Replace static time-of-day greetings (Guten Morgen/Tag/Abend) with a random
pick from a pool of 10-12 music-themed phrases each time HomeScreen is composed.
With username: "Ready for some beats, Marc" — without: "What's on the playlist today?"

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

android/app/src/main/kotlin/com/novasonic/app/ui/screen/HomeScreen.kt

@@ -30,7 +30,34 @@ import com.novasonic.app.api.model.Genre
 import com.novasonic.app.ui.component.AlbumCard
 import com.novasonic.app.ui.theme.*
 import com.novasonic.app.viewmodel.HomeViewModel
-import java.util.Calendar
+
+private val greetingsWithName = listOf(
+    "Ready for some beats,",
+    "What's on the playlist,",
+    "Good vibes only,",
+    "Let the music play,",
+    "Your soundtrack awaits,",
+    "Turn it up,",
+    "Time to tune in,",
+    "Hit play and chill,",
+    "Music is the answer,",
+    "Welcome back,",
+)
+
+private val greetingsNoName = listOf(
+    "Ready for some beats?",
+    "What's on the playlist today?",
+    "Good vibes only",
+    "Let the music play",
+    "Your soundtrack awaits",
+    "Turn it up",
+    "Time to tune in",
+    "Hit play and chill",
+    "Music is the answer",
+    "What are we listening to?",
+    "Time to escape into music",
+    "Pick something great",
+)
 
 internal val genreColors = listOf(
     Color(0xFF1a1a3e), Color(0xFF1e2a1a), Color(0xFF2a1a1a),
@@ -54,14 +81,8 @@ fun HomeScreen(
 
     LaunchedEffect(refreshKey) { if (refreshKey > 0) vm.load() }
 
-    val greeting = remember {
-        val hour = Calendar.getInstance().get(Calendar.HOUR_OF_DAY)
-        when {
-            hour < 12 -> "Guten Morgen"
-            hour < 18 -> "Guten Tag"
-            else      -> "Guten Abend"
-        }
-    }
+    val greeting = remember { greetingsNoName.random() }
+    val greetingWithName = remember { greetingsWithName.random() }
 
     LazyColumn(
         contentPadding = PaddingValues(bottom = 24.dp),
@@ -70,7 +91,7 @@ fun HomeScreen(
         item {
             val name = state.username.replaceFirstChar { it.uppercaseChar() }
             Text(
-                text = if (name.isBlank()) greeting else "$greeting, $name 👋",
+                text = if (name.isBlank()) greeting else "$greetingWithName $name",
                 fontFamily = Outfit,
                 fontSize = 24.sp,
                 fontWeight = FontWeight.Bold,