test(raps): cover RoleTemplateSimplified constructor mapping

Two unit tests for the constructor that drives the GetRoleTemplates
projection:

- Constructor_MapsScalarsAndFlattensRoles: verifies the scalar
  properties and the nested RoleTemplateRoles -> Roles flattening
  via Role.RoleId / Role.FriendlyName.
- Constructor_EmptyRoles_ReturnsEmptyCollection: ensures the Roles
  initializer does not depend on a non-empty source collection.

Pins the constructor's mapping behavior so the cs/virtual-call-in-
constructor fix (dropping `virtual` from Roles) does not silently
regress the projection.

Author: rlorenzo

test/RAPS/RoleTemplateSimplifiedTests.cs

@@ -0,0 +1,59 @@
+using Viper.Areas.RAPS.Models;
+using Viper.Models.RAPS;
+
+namespace Viper.test.RAPS
+{
+    public class RoleTemplateSimplifiedTests
+    {
+        [Fact]
+        public void Constructor_MapsScalarsAndFlattensRoles()
+        {
+            // arrange
+            var rt = new RoleTemplate
+            {
+                RoleTemplateId = 42,
+                TemplateName = "Test Template",
+                Description = "Desc",
+                RoleTemplateRoles = new List<RoleTemplateRole>
+                {
+                    new() { Role = new TblRole { RoleId = 1, Role = "Alpha", DisplayName = "Alpha" } },
+                    new() { Role = new TblRole { RoleId = 2, Role = "Beta", DisplayName = "Beta" } }
+                }
+            };
+
+            // act
+            var dto = new RoleTemplateSimplified(rt);
+
+            // assert
+            Assert.Equal(42, dto.RoleTemplateId);
+            Assert.Equal("Test Template", dto.TemplateName);
+            Assert.Equal("Desc", dto.Description);
+            var roles = dto.Roles.ToList();
+            Assert.Equal(2, roles.Count);
+            Assert.Equal(1, roles[0].RoleId);
+            Assert.Equal("Alpha", roles[0].FriendlyName);
+            Assert.Equal(2, roles[1].RoleId);
+            Assert.Equal("Beta", roles[1].FriendlyName);
+        }
+
+        [Fact]
+        public void Constructor_EmptyRoles_ReturnsEmptyCollection()
+        {
+            // arrange
+            var rt = new RoleTemplate
+            {
+                RoleTemplateId = 7,
+                TemplateName = "No Roles",
+                Description = "",
+                RoleTemplateRoles = new List<RoleTemplateRole>()
+            };
+
+            // act
+            var dto = new RoleTemplateSimplified(rt);
+
+            // assert
+            Assert.Equal(7, dto.RoleTemplateId);
+            Assert.Empty(dto.Roles);
+        }
+    }
+}