Channel context menu: long-press/right-click a row → rename, favorite/unfavorite, add/change/remove icon (color or image), delete; removed star/delete row buttons; favorite + icon/color synced across devices

app/shared/src/androidMain/kotlin/iris/platform/AndroidMedia.kt

@@ -143,6 +143,33 @@ actual suspend fun loadScaledImage(path: String, maxSize: Int): ImageBitmap? = w
     }
 }
 
+actual suspend fun encodeImageAsBase64(path: String, maxSize: Int): String? = withContext(Dispatchers.IO) {
+    try {
+        val bounds = BitmapFactory.Options().apply { inJustDecodeBounds = true }
+        BitmapFactory.decodeFile(path, bounds)
+        if (bounds.outWidth <= 0 || bounds.outHeight <= 0) return@withContext null
+        var sample = 1
+        while (maxOf(bounds.outWidth, bounds.outHeight) / sample > maxSize) sample *= 2
+        val opts = BitmapFactory.Options().apply { inSampleSize = sample }
+        val bitmap = BitmapFactory.decodeFile(path, opts) ?: return@withContext null
+        val stream = java.io.ByteArrayOutputStream()
+        bitmap.compress(android.graphics.Bitmap.CompressFormat.PNG, 100, stream)
+        bitmap.recycle()
+        android.util.Base64.encodeToString(stream.toByteArray(), android.util.Base64.NO_WRAP)
+    } catch (e: Exception) {
+        null
+    }
+}
+
+actual suspend fun decodeBase64Image(base64: String): ImageBitmap? = withContext(Dispatchers.IO) {
+    try {
+        val bytes = android.util.Base64.decode(base64, android.util.Base64.DEFAULT)
+        BitmapFactory.decodeByteArray(bytes, 0, bytes.size)?.asImageBitmap()
+    } catch (e: Exception) {
+        null
+    }
+}
+
 @Composable
 actual fun MediaPlayerView(media: MediaItem, modifier: Modifier) {
     val path = media.localPath