feat(wallet): Tron KDF fix, balance confirmation, withdraw flow hardening & UI redesign

assets/translations/en.json

@@ -490,13 +490,17 @@
   "withdrawTronEnergyUsed": "Energy used",
   "withdrawTronEnergyFee": "Energy fee",
   "withdrawTronEnergySource": "Energy source",
+  "withdrawTronAccountActivationFee": "Account activation fee",
   "withdrawTronFeeSummary": "TRON fee summary",
   "withdrawTronFeePaidIn": "Paid in {}",
   "withdrawTronBandwidthCovered": "Covered by free NET bandwidth",
   "withdrawTronEnergyCovered": "Covered by free energy",
   "withdrawTronResourceNotUsed": "Not used",
   "withdrawTronFeeSummaryCharged": "Network will charge {} {}.",
   "withdrawTronFeeSummaryCovered": "No {} fee will be charged (covered by resources).",
+  "withdrawTronPreviewExpired": "This TRON transaction preview expired. Regenerate it to continue.",
+  "withdrawTronPreviewRefreshFailed": "This TRON transaction preview expired and could not be refreshed.",
+  "withdrawTronPreviewRegenerate": "Regenerate",
   "txHistoryFetchError": "Error fetching tx history from the endpoint. Unsupported type: {}",
   "txHistoryNoTransactions": "Transactions are not available",
   "maxGapLimitReached": "Maximum gap limit reached - please use existing unused addresses first",

lib/bloc/coins_bloc/coins_repo.dart

@@ -808,17 +808,38 @@ class CoinsRepo {
     _invalidateActivatedAssetsCache();
   }
 
-  double? getUsdPriceByAmount(String amount, String coinAbbr) {
+  /// Calculates USD value for a numeric [amount] of [coinAbbr].
+  ///
+  /// Prefer this method over [getUsdPriceByAmount] to avoid string parsing
+  /// issues (e.g. accidentally passing display-formatted values like
+  /// `"1.1 TRX"`).
+  double? getUsdPriceForAmount(num amount, String coinAbbr) {
     final Coin? coin = getCoin(coinAbbr);
-    final double? parsedAmount = double.tryParse(amount);
+    final double parsedAmount = amount.toDouble();
     final double? usdPrice = coin?.usdPrice?.price?.toDouble();
 
-    if (coin == null || usdPrice == null || parsedAmount == null) {
+    if (coin == null || usdPrice == null) {
       return null;
     }
     return parsedAmount * usdPrice;
   }
 
+  @Deprecated(
+    'Use getUsdPriceForAmount(num amount, String coinAbbr) to avoid '
+    'string-parsing bugs from display-formatted values.',
+  )
+  double? getUsdPriceByAmount(String amount, String coinAbbr) {
+    final double? parsedAmount = double.tryParse(amount);
+    if (parsedAmount == null) {
+      _log.warning(
+        'Invalid amount "$amount" passed to getUsdPriceByAmount for $coinAbbr. '
+        'Use getUsdPriceForAmount() with a numeric value.',
+      );
+      return null;
+    }
+    return getUsdPriceForAmount(parsedAmount, coinAbbr);
+  }
+
   /// Fetches current prices for a broad set of assets
   ///
   /// This method is used to fetch prices for a broad set of assets so unauthenticated users

lib/bloc/coins_bloc/coins_state.dart

@@ -78,28 +78,34 @@ class CoinsState extends Equatable {
     return getPriceForAsset(assetId)?.change24h?.toDouble();
   }
 
-  /// Calculates the USD price for a given amount of a coin
-  ///
-  /// [amount] The amount of the coin as a string
-  /// [coinAbbr] The abbreviation/symbol of the coin
+  /// Calculates the USD price for a given numeric [amount] of [coinAbbr].
   ///
   /// Returns null if:
   /// - The coin is not found in the state
-  /// - The amount cannot be parsed to a double
   /// - The coin does not have a USD price
   ///
   /// Note: This will be migrated to use the SDK's price functionality in the future.
   /// See the MarketDataManager in the SDK for the new implementation.
-  @Deprecated('Use sdk.prices.fiatPrice(assetId) * amount instead')
-  double? getUsdPriceByAmount(String amount, String coinAbbr) {
+  double? getUsdPriceForAmount(num amount, String coinAbbr) {
     final Coin? coin = coins[coinAbbr];
-    final double? parsedAmount = double.tryParse(amount);
+    final double parsedAmount = amount.toDouble();
     final CexPrice? cexPrice = prices[coinAbbr.toUpperCase()];
     final double? usdPrice = cexPrice?.price?.toDouble();
 
-    if (coin == null || usdPrice == null || parsedAmount == null) {
+    if (coin == null || usdPrice == null) {
       return null;
     }
     return parsedAmount * usdPrice;
   }
+
+  /// Backward-compatible string overload.
+  @Deprecated(
+    'Use getUsdPriceForAmount(num amount, String coinAbbr) to avoid '
+    'string-parsing bugs from display-formatted values.',
+  )
+  double? getUsdPriceByAmount(String amount, String coinAbbr) {
+    final double? parsedAmount = double.tryParse(amount);
+    if (parsedAmount == null) return null;
+    return getUsdPriceForAmount(parsedAmount, coinAbbr);
+  }
 }

lib/bloc/custom_token_import/bloc/custom_token_import_bloc.dart

@@ -187,8 +187,8 @@ class CustomTokenImportBloc
 
       final balanceInfo = await _coinsRepo.tryGetBalanceInfo(tokenData.id);
       final balance = balanceInfo.spendable;
-      final usdBalance = _coinsRepo.getUsdPriceByAmount(
-        balance.toString(),
+      final usdBalance = _coinsRepo.getUsdPriceForAmount(
+        balance.toDouble(),
         tokenData.id.id,
       );