Add validation for Kudai strategy staking requirements in StartCopyTradingCommandHandler. Implemented methods in IEvmManager to retrieve staked KUDAI balance and GBC NFT count. Enhanced error handling for staking checks.

src/Managing.Application.Abstractions/Repositories/IEvmManager.cs

@@ -93,4 +93,18 @@ public interface IEvmManager
         DateTime? toDate = null,
         int pageIndex = 0,
         int pageSize = 20);
+
+    /// <summary>
+    /// Gets the staked KUDAI balance for a specific address
+    /// </summary>
+    /// <param name="address">The wallet address to check</param>
+    /// <returns>The amount of KUDAI tokens staked</returns>
+    Task<decimal> GetKudaiStakedBalance(string address);
+
+    /// <summary>
+    /// Gets the count of staked GBC NFTs for a specific address
+    /// </summary>
+    /// <param name="address">The wallet address to check</param>
+    /// <returns>The number of GBC NFTs staked</returns>
+    Task<int> GetGbcStakedCount(string address);
 }