Format asset metadata with localized file sizes and minute precision (#6197)

Extract the visible asset metadata formatting from local/talkback-all-10. Use Android file-size formatting and derive the date/time pattern from the app configuration locale and the device 12/24-hour preference, without seconds.

Remove the metadata-only remember cache so recomposition uses the current formatting context. Preserve the existing size/date separator, missing-file message, row layout, action buttons, and accessibility semantics. No update-result or asset-editor changes are included.

V2rayNG/app/src/main/java/com/v2ray/ang/ui/userasset/UserAssetActivity.kt

@@ -4,6 +4,8 @@ import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
 import android.provider.OpenableColumns
+import android.text.format.DateFormat
+import android.text.format.Formatter
 import androidx.activity.viewModels
 import androidx.annotation.StringRes
 import androidx.compose.foundation.layout.Box
@@ -34,6 +36,8 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalConfiguration
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextOverflow
@@ -45,7 +49,6 @@ import com.v2ray.ang.AppConfig
 import com.v2ray.ang.R
 import com.v2ray.ang.dto.entities.AssetUrlCache
 import com.v2ray.ang.dto.entities.AssetUrlItem
-import com.v2ray.ang.extension.toTrafficString
 import com.v2ray.ang.extension.toast
 import com.v2ray.ang.extension.toastError
 import com.v2ray.ang.extension.toastSuccess
@@ -66,7 +69,7 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import java.io.File
-import java.text.DateFormat
+import java.text.SimpleDateFormat
 import java.util.Date
 
 private enum class AddAssetMenuAction(@StringRes val labelRes: Int) {
@@ -353,11 +356,14 @@ private fun UserAssetItem(
     onEdit: () -> Unit,
     onDeleteClick: () -> Unit
 ) {
+    val context = LocalContext.current
+    val locale = LocalConfiguration.current.locales[0]
     val propertiesText = if (fileMetadata != null) {
-        remember(fileMetadata) {
-            val dateFormat = DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.MEDIUM)
-            "${fileMetadata.length.toTrafficString()}  •  ${dateFormat.format(Date(fileMetadata.lastModified))}"
-        }
+        val fileSize = Formatter.formatFileSize(context, fileMetadata.length)
+        val skeleton = if (DateFormat.is24HourFormat(context)) "yMMMdHm" else "yMMMdhm"
+        val formattedDate = SimpleDateFormat(DateFormat.getBestDateTimePattern(locale, skeleton), locale)
+            .format(Date(fileMetadata.lastModified))
+        "$fileSize  •  $formattedDate"
     } else {
         stringResource(R.string.msg_file_not_found)
     }