feat: Implement get role API endpoint for admin

packages/backend/test/mocks/rest/api/v1/admin/roles/get-role.ee.js

@@ -0,0 +1,33 @@
+const getRoleMock = async (role, permissions) => {
+  const data = {
+    id: role.id,
+    key: role.key,
+    name: role.name,
+    isAdmin: role.isAdmin,
+    description: role.description,
+    createdAt: role.createdAt.toISOString(),
+    updatedAt: role.updatedAt.toISOString(),
+    permissions: permissions.map((permission) => ({
+      id: permission.id,
+      action: permission.action,
+      conditions: permission.conditions,
+      roleId: permission.roleId,
+      subject: permission.subject,
+      createdAt: permission.createdAt.toISOString(),
+      updatedAt: permission.updatedAt.toISOString(),
+    })),
+  };
+
+  return {
+    data: data,
+    meta: {
+      count: 1,
+      currentPage: null,
+      isArray: false,
+      totalPages: null,
+      type: 'Role',
+    },
+  };
+};
+
+export default getRoleMock;