Add initial implementation of API, database, and user management components.

MikrocopApi/Dtos/CreateUserDto.cs

@@ -0,0 +1,38 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace MikrocopApi.Dtos;
+
+public sealed class CreateUserDto
+{
+    [Required]
+    [StringLength(100, MinimumLength = 3)]
+    public string UserName { get; set; } = string.Empty;
+
+    [Required]
+    [StringLength(200, MinimumLength = 2)]
+    public string FullName { get; set; } = string.Empty;
+
+    [Required]
+    [EmailAddress]
+    [StringLength(200)]
+    public string Email { get; set; } = string.Empty;
+
+    [Required]
+    [StringLength(30, MinimumLength = 7)]
+    [RegularExpression(@"^\+?[0-9\- ]+$", ErrorMessage = "Mobile number contains invalid characters.")]
+    public string MobileNumber { get; set; } = string.Empty;
+
+    [Required]
+    [StringLength(10, MinimumLength = 2)]
+    [RegularExpression(@"^[a-zA-Z]{2,10}$", ErrorMessage = "Language must contain only letters.")]
+    public string Language { get; set; } = string.Empty;
+
+    [Required]
+    [StringLength(20, MinimumLength = 2)]
+    [RegularExpression(@"^[a-zA-Z]{2,10}(-[a-zA-Z]{2,10})?$", ErrorMessage = "Culture format is invalid.")]
+    public string Culture { get; set; } = string.Empty;
+
+    [Required]
+    [StringLength(128, MinimumLength = 8)]
+    public string Password { get; set; } = string.Empty;
+}