V16 RC: getOpenApiConfiguration().token does not work

[iOvergaard]

Description

One line accidentally got changed compared to V15, so getting the latest token through the helpful "openApiConfiguration" object was no longer possible.

This pull request reverts the line to V15, where the token is proxied through the AuthContext, so we don't accidentally call a private member of AuthFlow.

Additionally, I have updated the umbraco-extension template to reflect that all contexts are now potentially undefined, because they can be revoked.

This fixes #19207

How to test

Go to a random element like the umbraco-news-dashboard.element.ts and test that you can get the token through the two officially supported methods:

	override firstUpdated() {
		this.consumeContext(UMB_AUTH_CONTEXT, async (auth) => {
			console.log('token 1', await auth?.getLatestToken());
			console.log('token 2', await auth?.getOpenApiConfiguration().token());
		});
	}

You should see token 1 and token 2 logged to the console.

[Copilot]

Pull Request Overview

This PR reverts a change in how the token is accessed from the OpenAPI configuration to proxy the token through the AuthContext as in V15, and updates context types to handle potentially undefined values.

• Reverts the direct token property access to using a function call in auth.context.ts.
• Updates optional chaining and type annotations in entrypoint.ts and dashboard.element.ts to account for revoked contexts.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
templates/UmbracoExtension/Client/src/entrypoints/entrypoint.ts	Reverts token access to use optional chaining and ensures safer config extraction.
templates/UmbracoExtension/Client/src/dashboards/dashboard.element.ts	Updates state properties to reflect optional contexts and removes duplicate notification context declaration.
src/Umbraco.Web.UI.Client/src/packages/core/auth/auth.context.ts	Wraps the getLatestToken call in a function to avoid direct access to a private member.

[leekelleher]

Tested out, all good! 🚀