feat(android): add description field to playlist edit dialog

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

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

@@ -273,6 +273,7 @@ fun PlaylistDetailScreen(
     // ── Rename dialog ─────────────────────────────────────────────────────────
     if (showRenameDialog) {
         var nameInput    by remember { mutableStateOf(pl.name) }
+        var commentInput by remember { mutableStateOf(pl.comment ?: "") }
         AlertDialog(
             onDismissRequest = { showRenameDialog = false },
             title = { Text("Playlist bearbeiten", fontFamily = Outfit, fontWeight = FontWeight.Bold) },
@@ -283,6 +284,21 @@ fun PlaylistDetailScreen(
                         onValueChange = { nameInput = it },
                         label = { Text("Name") },
                         singleLine = true,
+                        keyboardOptions = KeyboardOptions(imeAction = ImeAction.Next),
+                        shape = RoundedCornerShape(12.dp),
+                        colors = OutlinedTextFieldDefaults.colors(
+                            focusedBorderColor   = NsAccent,
+                            unfocusedBorderColor = NsOnSurface3,
+                            cursorColor          = NsAccent,
+                        ),
+                        modifier = Modifier.fillMaxWidth(),
+                    )
+                    OutlinedTextField(
+                        value = commentInput,
+                        onValueChange = { commentInput = it },
+                        label = { Text("Beschreibung") },
+                        minLines = 2,
+                        maxLines = 4,
                         keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),
                         shape = RoundedCornerShape(12.dp),
                         colors = OutlinedTextFieldDefaults.colors(
@@ -305,7 +321,7 @@ fun PlaylistDetailScreen(
             },
             confirmButton = {
                 TextButton(
-                    onClick = { vm.rename(nameInput); showRenameDialog = false },
+                    onClick = { vm.rename(nameInput, commentInput); showRenameDialog = false },
                     enabled = nameInput.isNotBlank(),
                 ) {
                     Text("Speichern", color = NsAccent, fontFamily = Outfit, fontWeight = FontWeight.Bold)

android/app/src/main/kotlin/com/novasonic/app/viewmodel/PlaylistViewModel.kt

@@ -45,17 +45,18 @@ class PlaylistViewModel(app: Application, savedState: SavedStateHandle) : Androi
         }
     }
 
-    fun rename(newName: String) {
+    fun rename(newName: String, newComment: String? = null) {
         val id = playlistId ?: return
         val pl = _state.value.playlist ?: return
         val trimmed = newName.trim()
         if (trimmed.isBlank()) return
+        val comment = newComment?.trim() ?: pl.comment
         viewModelScope.launch {
             _state.value = _state.value.copy(isSaving = true)
             try {
-                repo.updatePlaylistMeta(id, trimmed, pl.comment)
+                repo.updatePlaylistMeta(id, trimmed, comment)
                 _state.value = _state.value.copy(
-                    playlist = pl.copy(name = trimmed),
+                    playlist = pl.copy(name = trimmed, comment = comment),
                     isSaving = false,
                 )
             } catch (e: Exception) {