Fix get Gas fees + position direction list

src/Managing.Domain/Evm/GasFeeData.cs

@@ -0,0 +1,70 @@
+using System.Text.Json.Serialization;
+
+namespace Managing.Domain.Evm
+{
+    /// <summary>
+    /// Gas fee data model
+    /// </summary>
+    public class GasFeeData
+    {
+        /// <summary>
+        /// Estimated gas fee in Wei
+        /// </summary>
+        [JsonPropertyName("estimatedGasFeeWei")]
+        public string? EstimatedGasFeeWei { get; set; }
+
+        /// <summary>
+        /// Estimated gas fee in ETH
+        /// </summary>
+        [JsonPropertyName("estimatedGasFeeEth")]
+        public string? EstimatedGasFeeEth { get; set; }
+
+        /// <summary>
+        /// Estimated gas fee in USD
+        /// </summary>
+        [JsonPropertyName("estimatedGasFeeUsd")]
+        public double? EstimatedGasFeeUsd { get; set; }
+
+        /// <summary>
+        /// ETH balance of the account
+        /// </summary>
+        [JsonPropertyName("ethBalance")]
+        public string? EthBalance { get; set; }
+
+        /// <summary>
+        /// Current ETH price in USD
+        /// </summary>
+        [JsonPropertyName("ethPrice")]
+        public double? EthPrice { get; set; }
+
+        /// <summary>
+        /// Whether the account has sufficient balance for gas fees
+        /// </summary>
+        [JsonPropertyName("hasSufficientBalance")]
+        public bool? HasSufficientBalance { get; set; }
+
+        /// <summary>
+        /// Error message if insufficient balance
+        /// </summary>
+        [JsonPropertyName("errorMessage")]
+        public string? ErrorMessage { get; set; }
+
+        /// <summary>
+        /// Maximum allowed gas fee in USD
+        /// </summary>
+        [JsonPropertyName("maxAllowedUsd")]
+        public double? MaxAllowedUsd { get; set; }
+
+        /// <summary>
+        /// Gas price in Wei
+        /// </summary>
+        [JsonPropertyName("gasPrice")]
+        public string? GasPrice { get; set; }
+
+        /// <summary>
+        /// Gas limit
+        /// </summary>
+        [JsonPropertyName("gasLimit")]
+        public string? GasLimit { get; set; }
+    }
+}