Replace implicit types with explicit types in UsersPage and ProfilePage

CORP-MAUI/Services/ApiService.cs

@@ -258,7 +258,7 @@ public class ApiService : IDisposable
     {
         try
         {
-            var loginData = new { email, password };
+            LoginRequest loginData = new LoginRequest { Email = email, Password = password };
             // Используем относительный путь, так как BaseAddress уже установлен
             string path = _config.TokenObtainPath.TrimStart('/');
             
@@ -1211,3 +1211,17 @@ internal class TokenResponse
     public string? Refresh { get; set; }
 }
 
+internal class LoginRequest
+{
+    [JsonPropertyName("email")]
+    public string Email { get; set; } = string.Empty;
+    
+    [JsonPropertyName("password")]
+    public string Password { get; set; } = string.Empty;
+}
+
+internal class RefreshRequest
+{
+    [JsonPropertyName("refresh")]
+    public string Refresh { get; set; } = string.Empty;
+}