Refactor: Share ErrorStep component across wizards

[FL4TLiN3]

Summary

• Add shared ErrorStep component with useInput handler for keyboard navigation
• Replace inline error rendering in status, tag, and unpublish wizards with the shared component
• Fix bug where "Press any key to go back" message was displayed but keyboard input was not handled

Closes #23

Test plan

• Verify error screen in status wizard responds to keyboard input
• Verify error screen in tag wizard responds to keyboard input
• Verify error screen in unpublish wizard responds to keyboard input
• Confirm pressing any key navigates back to expert selection

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Note

Introduce a shared ErrorStep component and replace inline error UIs in status, tag, and unpublish apps.

• Components:
  • Add packages/tui/src/components/error-step.tsx exporting ErrorStep with useInput to trigger onBack on any key.
  • Export ErrorStep and ErrorStepProps from packages/tui/src/components/index.ts.
• Apps:
  • Replace inline error rendering with ErrorStep in:
    • packages/tui/apps/status/app.tsx
    • packages/tui/apps/tag/app.tsx
    • packages/tui/apps/unpublish/app.tsx

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Project	Deployment	Preview	Comments	Updated (UTC)
perstack	Ready	Preview	Comment	Dec 4, 2025 4:00am

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