V16: Upgrade Login dependencies to Umbraco 16

[iOvergaard]

Note

We can upgrade to a public Umbraco 16 RC version on the login screen because we only need to match the typings

This pull request introduces several updates to the Umbraco.Web.UI.Login project, focusing on dependency upgrades, improved error handling, and code consistency. The most important changes include upgrading dependencies in package.json, enhancing error handling in various components, and improving code readability and consistency by updating imports and formatting.

Dependency Upgrades:

• Updated @umbraco-cms/backoffice to version 16.0.0-rc3, @hey-api/openapi-ts to ^0.67.3, typescript to ^5.8.3, and vite to ^6.3.5 in package.json for compatibility with the latest features and bug fixes.

Error Handling Improvements:

• Added checks for authContext availability in UmbNewPasswordLayoutElement and UmbResetPasswordPageElement to prevent potential runtime errors when the authentication context is unavailable. [1] [2]
• Enhanced error handling in UmbSlimBackofficeController by adding a catch block for registerPublicExtensions to gracefully handle errors during extension registration.

Code Consistency and Cleanup:

• Standardized import formatting across multiple files (e.g., reset-password.page.element.ts, auth.context.ts, auth.repository.ts, slim-backoffice-initializer.ts) by using single quotes and consistent ordering. [1] [2] [3] [4]

[Copilot]

Pull Request Overview

This PR upgrades the Umbraco login project to use Umbraco 16 dependencies, strengthens error handling guards in UI components, and brings consistent import formatting across the codebase.

• Bumped core dependencies in package.json to align with Umbraco 16 (RC) and updated tooling versions.
• Added fallback error handling for missing contexts and registration failures.
• Standardized import syntax and quote style in multiple TypeScript files.

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/Umbraco.Web.UI.Login/src/controllers/slim-backoffice-initializer.ts	Added a .catch() to extension registration and consolidated imports
src/Umbraco.Web.UI.Login/src/contexts/auth.repository.ts	Reordered/moved backoffice imports for consistency
src/Umbraco.Web.UI.Login/src/contexts/auth.context.ts	Standardized import quotes and removed redundant generic parameter
src/Umbraco.Web.UI.Login/src/components/pages/reset-password.page.element.ts	Standardized imports and added guard for missing authContext
src/Umbraco.Web.UI.Login/src/components/pages/login.page.element.ts	Updated supportPersistLogin assignment to use optional chaining
src/Umbraco.Web.UI.Login/src/components/layouts/new-password-layout.element.ts	Added guard for missing passwordConfiguration and standardized imports
src/Umbraco.Web.UI.Login/package.json	Upgraded @umbraco-cms/backoffice, @hey-api/openapi-ts, typescript, and vite

[leekelleher]

Tested out, Login works as expected! 🚀