fix: Update tetrate signup step

[michaelneale]

Make it clearer for the signup options and makes it clear there is more to scroll down to:

with free starter access and recommended badge as before

[Copilot]

Pull request overview

This PR updates the provider signup UI in the first-time setup flow to make the signup options clearer. The Tetrate card now displays more prominently with a "Recommended" badge and updated messaging about the $10 starter credit.

Key changes:

• Restructured provider cards from a 2-column grid to full-width stacked layout
• Added "Recommended" badge to the Tetrate option
• Updated text to clarify the $10 starter credit offering

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
ui/desktop/src/components/ProviderGuard.tsx	Redesigned provider selection cards to full-width layout, added "Recommended" badge to Tetrate, updated copy to highlight $10 starter credit and simplified branding to "Agent Router by Tetrate"
ui/desktop/package-lock.json	Auto-generated peer dependency metadata updates from npm

Files not reviewed (1)

• ui/desktop/package-lock.json: Language not supported

[Copilot]

Pull request overview

Copilot reviewed 1 out of 2 changed files in this pull request and generated no new comments.

Files not reviewed (1)

• ui/desktop/package-lock.json: Language not supported

[angiejones]

why are there 2 "Recommended" ribbons? it's a bit confusing

[michaelneale]

@angiejones yeah we used to have that - basically one is BYO token option, other is signup and have it set up for you - ie "which path do you want" which I think makes sense? could have a different wording on each ribbon or something? (ie really - do you have a api key: go here, you don't: go there?) - something like that?

[michaelneale]

@angiejones

this should make it clearer

[codefromthecrypt]

thanks so much @michaelneale and @angiejones for thinking about coherency here!