feat: update tokenAmount and splTokenTransferCheckedInfo models

packages/solana/lib/src/rpc/dto/parsed_message/spl_token_transfer_checked_info.dart

@@ -12,6 +12,9 @@ class SplTokenTransferCheckedInfo {
     required this.tokenAmount,
     required this.source,
     required this.destination,
+    required this.mint,
+    required this.multisigAuthority,
+    required this.signers,
   });
 
   factory SplTokenTransferCheckedInfo.fromJson(
@@ -22,4 +25,7 @@ class SplTokenTransferCheckedInfo {
   final TokenAmount tokenAmount;
   final String source;
   final String destination;
+  final String mint;
+  final String multisigAuthority;
+  final List<String> signers;
 }

packages/solana/lib/src/rpc/dto/token_amount.dart

@@ -9,6 +9,7 @@ class TokenAmount {
     required this.amount,
     required this.decimals,
     required this.uiAmountString,
+    required this.uiAmount,
   });
 
   factory TokenAmount.fromJson(Map<String, dynamic> json) =>
@@ -24,4 +25,7 @@ class TokenAmount {
 
   /// Token amount as a string, accounting for decimals.
   final String? uiAmountString;
+
+  /// Token amount as a decimal number.
+  final double uiAmount;
 }