setup: hide the restore card until rt restore exists

[m4ttheweric]

The team screen's "Already have mattstack settings?" card runs rt restore <org>/<repo> at Continue. rt has no restore command (rt restore --help prints "unknown command: restore"), so picking it was a dead end.

• Removes the card from TeamScreen. TeamChoiceModel's restore path and the card's fields stay in place for when the command exists; nothing else can preselect .restore (the model defaults to .create).
• RT-268 tracks building restore properly (key import at Continue, clone during Install once the forge token is connected).

Verified: swift build clean. Rendered the team screen from this build in light and dark: two cards (Create, Join), nothing clipped. No test or VM driver references the restore card.

🤖 Generated with Claude Code

Summary by CodeRabbit

• Changes
  • Removed the “Already have mattstack settings?” restore card from the team-choice screen. The create and join options remain available.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: 56337b3b-8e23-437c-a242-e7cb5b9df9db

📥 Commits

Reviewing files that changed from the base of the PR and between 0f170a0 and 3418fcb.

📒 Files selected for processing (1)

• rt-tray/Sources/Setup/Screens/TeamScreen.swift

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📝 Walkthrough

Walkthrough

The team-choice screen no longer displays the “Already have mattstack settings?” restore card. The create and join cards remain.

Changes

Team Choice Screen

Layer / File(s)	Summary
Team choice options rt-tray/Sources/Setup/Screens/TeamScreen.swift	The screen removes the restore card. The create and join cards remain.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Merge Risk: ⚪ Minimal · up to 3418f

Users can choose Create or Join; the unavailable restore option is hidden as intended. No concrete merge-blocking risk remains.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main change: hiding the restore card until the rt restore functionality exists.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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