feat: home page per role — selector in RolesTab, saved to DB and applied on login

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

src/lib/api.ts

@@ -309,7 +309,7 @@ export const api = {
         'GET', `/api/hotels/${slug}/role-permissions`),
 
     save: (slug: string, roleKey: string, data: {
-      name: string; color: string; isSystem: boolean; permissions: Record<string, boolean>
+      name: string; color: string; isSystem: boolean; permissions: Record<string, boolean>; homePage?: string | null
     }) =>
       req<import('../contexts/RolePermissionsContext').SavedRolePermission>(
         'PUT', `/api/hotels/${slug}/role-permissions/${roleKey}`, data),