feat: add PagedResult, Member DTOs, and User DTOs

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

API/ROLAC.API/DTOs/Users/CreateUserRequest.cs

@@ -0,0 +1,10 @@
+using System.ComponentModel.DataAnnotations;
+namespace ROLAC.API.DTOs.Users;
+
+public class CreateUserRequest
+{
+    [Required]               public int         MemberId           { get; set; }
+    [Required, EmailAddress] public string      Email              { get; set; } = "";
+    [Required, MinLength(1)] public List<string> Roles             { get; set; } = [];
+                             public string      LanguagePreference { get; set; } = "en";
+}

API/ROLAC.API/DTOs/Users/CreateUserResult.cs

@@ -0,0 +1,7 @@
+namespace ROLAC.API.DTOs.Users;
+
+public class CreateUserResult
+{
+    public string UserId       { get; set; } = "";
+    public string TempPassword { get; set; } = "";
+}

API/ROLAC.API/DTOs/Users/UpdateUserRequest.cs

@@ -0,0 +1,10 @@
+using System.ComponentModel.DataAnnotations;
+namespace ROLAC.API.DTOs.Users;
+
+public class UpdateUserRequest
+{
+    [Required, EmailAddress] public string      Email              { get; set; } = "";
+    [Required]               public List<string> Roles             { get; set; } = [];
+                             public bool         IsActive          { get; set; }
+                             public string       LanguagePreference { get; set; } = "en";
+}

API/ROLAC.API/DTOs/Users/UserDto.cs

@@ -0,0 +1,2 @@
+namespace ROLAC.API.DTOs.Users;
+public class UserDto : UserListItemDto { }

API/ROLAC.API/DTOs/Users/UserListItemDto.cs

@@ -0,0 +1,14 @@
+namespace ROLAC.API.DTOs.Users;
+
+public class UserListItemDto
+{
+    public string       Id                 { get; set; } = "";
+    public string       Email              { get; set; } = "";
+    public int?         MemberId           { get; set; }
+    public string?      MemberDisplayName  { get; set; }
+    public List<string> Roles              { get; set; } = [];
+    public bool         IsActive           { get; set; }
+    public string       LanguagePreference { get; set; } = "en";
+    public DateTime?    LastLoginAt        { get; set; }
+    public DateTime     CreatedAt          { get; set; }
+}