Fix perf with cache

src/Managing.Application/Accounts/AccountService.cs

@@ -199,10 +199,11 @@ public class AccountService : IAccountService
 
     private async Task<IEnumerable<Account>> GetAccountsAsync(User user, bool hideSecrets, bool getBalance)
     {
-        var result = await _accountRepository.GetAccountsAsync();
+        // Use the new efficient repository method that queries accounts by user directly
+        var result = await _accountRepository.GetAccountsByUserAsync(user);
         var accounts = new List<Account>();
 
-        foreach (var account in result.Where(a => a.User.Name == user.Name))
+        foreach (var account in result)
         {
             await ManagePropertiesAsync(hideSecrets, getBalance, account);
             accounts.Add(account);

src/Managing.Application/Users/UserService.cs

@@ -144,12 +144,8 @@ public class UserService : IUserService
 
         // Fetch from database (either cache miss or cache disabled)
         var account = await _accountService.GetAccountByKey(address, true, false);
-        var user = await _userRepository.GetUserByNameAsync(account.User.Name);
+        var user = await _userRepository.GetUserByNameAsync(account.User.Name, true);
 
-        // Use proper async version to avoid DbContext concurrency issues
-        user.Accounts = (await _accountService.GetAccountsByUserAsync(user)).ToList();
-
-        // Save to cache for 5 minutes if caching is enabled (JWT middleware calls this on every request)
         if (useCache)
         {
             _cacheService.SaveValue(cacheKey, user, TimeSpan.FromMinutes(5));