New organism consolidating PreviewStep + AuthGateStep into a
single MUI Dialog with two internal steps:
- Step 1 (preview): ProviderCardCompact, package summary with
sections/items/total, "What happens next" checklist, Continue CTA
(pre-planning adds "Explore other options")
- Step 2 (auth): SSO buttons (Google/Microsoft), email entry,
progressive disclosure for details (name, phone, contact pref),
verification code, terms
Parent controls step state + auth form values. Dialog has back
arrow to return from auth → preview, close button on both steps.
Stories: Default (full flow), AuthStep, AuthDetails, PrePlanning
PreviewStep and AuthGateStep kept for now — to be deprecated
once ArrangementDialog is wired into the flow.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
