Refactor SwapGmxTokens functionality into TradingService

- Moved SwapGmxTokensAsync method from AccountService to TradingService to centralize trading operations.
- Updated AccountController and AgentGrain to utilize the new TradingService method for swapping GMX tokens.
- Removed the old SwapGmxTokensAsync method from IAccountService and its implementation in AccountService.

src/Managing.Application.Abstractions/Services/IAccountService.cs

@@ -37,9 +37,6 @@ public interface IAccountService
     Task<IEnumerable<Account>> GetAccountsBalancesByUserAsync(User user, bool hideSecrets = true);
     Task<GmxClaimableSummary> GetGmxClaimableSummaryAsync(User user, string accountName);
 
-    Task<SwapInfos> SwapGmxTokensAsync(User user, string accountName, Ticker fromTicker, Ticker toTicker,
-        double amount, string orderType = "market", double? triggerRatio = null, double allowedSlippage = 0.5);
-
     Task<SwapInfos> SendTokenAsync(User user, string accountName, string recipientAddress, Ticker ticker,
         decimal amount, int? chainId = null);
 

src/Managing.Application.Abstractions/Services/ITradingService.cs

@@ -55,4 +55,6 @@ public interface ITradingService
     Task<IndicatorBase?> GetIndicatorByNameUserAsync(string name, User user);
     Task<Scenario?> GetScenarioByNameUserAsync(string scenarioName, User user);
     Task<IEnumerable<Position>> GetPositionByUserIdAsync(int userId);
+    Task<SwapInfos> SwapGmxTokensAsync(User user, string accountName, Ticker fromTicker, Ticker toTicker,
+        double amount, string orderType = "market", double? triggerRatio = null, double allowedSlippage = 0.5);
 }