feat: enhance file opening logic in OtherProfileScreen to support local, downloaded, and blob files

app/src/main/java/com/rosetta/messenger/ui/settings/OtherProfileScreen.kt

@@ -1402,11 +1402,24 @@ private fun openUriInExternalApp(context: android.content.Context, uri: Uri, mim
 
 private fun openSharedFile(context: android.content.Context, file: SharedFileItem): Boolean {
     val mimeType = inferMimeType(file.fileName)
+
+    // 1. Попробовать localUri
     if (file.localUri.isNotBlank()) {
         val local = runCatching { Uri.parse(file.localUri) }.getOrNull()
         if (local != null && openUriInExternalApp(context, local, mimeType)) return true
     }
 
+    // 2. Проверить rosetta_downloads (файлы скачанные через CDN в чате)
+    val downloadsDir = File(context.filesDir, "rosetta_downloads")
+    val downloadedFile = File(downloadsDir, file.fileName)
+    if (downloadedFile.exists() && downloadedFile.length() > 0) {
+        val uri = runCatching {
+            FileProvider.getUriForFile(context, "${context.packageName}.provider", downloadedFile)
+        }.getOrNull()
+        if (uri != null && openUriInExternalApp(context, uri, mimeType)) return true
+    }
+
+    // 3. Попробовать blob (inline-файлы)
     val bytes = decodeBlobPayload(file.blob) ?: return false
     val extension = file.fileName.substringAfterLast('.', "").lowercase(Locale.getDefault())
     val suffix = if (extension.isBlank()) ".bin" else ".$extension"