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.Api/Controllers/AccountController.cs

@@ -14,18 +14,22 @@ namespace Managing.Api.Controllers
     public class AccountController : BaseController
     {
         private readonly IAccountService _AccountService;
+        private readonly ITradingService _TradingService;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="AccountController"/> class.
         /// </summary>
         /// <param name="AccountService">Service for account-related operations.</param>
         /// <param name="userService">Service for user-related operations.</param>
+        /// <param name="TradingService">Service for trading-related operations.</param>
         public AccountController(
             IAccountService AccountService,
-            IUserService userService)
+            IUserService userService,
+            ITradingService TradingService)
             : base(userService)
         {
             _AccountService = AccountService;
+            _TradingService = TradingService;
         }
 
         /// <summary>
@@ -101,7 +105,7 @@ namespace Managing.Api.Controllers
         public async Task<ActionResult<SwapInfos>> SwapGmxTokens(string name, [FromBody] SwapTokensRequest request)
         {
             var user = await GetUser();
-            var result = await _AccountService.SwapGmxTokensAsync(
+            var result = await _TradingService.SwapGmxTokensAsync(
                 user,
                 name,
                 request.FromTicker,