99df0816b0
Add a 5-step onboarding flow for new users: - Migration 017: adds onboarding_completed, onboarding_completed_at, contact_email, preferred_destination to user_profiles - app/api/onboarding.py: REST endpoints (status, profile, plan, storage, complete) with session-based auth using sub/preferred_username/email/id priority chain - app/views/onboarding.py: GET /onboarding view with configured-destination detection helper for all 8 supported storage providers - frontend/templates/onboarding.html: Alpine.js wizard with progress indicator, tier cards (server-rendered), storage destination cards, accessible markup (WCAG AA), and all fetch() API calls - app/auth.py: redirect first-time OAuth users (onboarding_completed=False) to /onboarding after login - 16 unit tests covering all endpoints, auth enforcement, and edge cases Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Generic single-database configuration.