Epic 1: Onboarding & account

[Tar-ive]

Reshaped from docs/user-stories.md. Legend: ✅ Live · 🟡 Partial · ⚪ Planned.

Personas: Giver

• 1.1 Sign up / sign in ✅ — As a Giver, I want to sign in (or use the app without an account), so that I can start without friction.
  • Clerk sign-in/up at /sign-in and /sign-up when configured; degrades gracefully when Clerk is absent.
• 1.2 Taste onboarding ✅ — As a Giver, I want a short onboarding that learns my taste, so that recommendations feel personal from day one.
  • /onboarding persists preferences; a returning signed-in user is not forced back through it.
• 1.3 Profile sync across devices 🟡 — As a Giver, I want my profile to follow me, so that taste and saves are consistent everywhere.
  • Cloud profile restores on load; some interaction data is local-only until persistence is wired (see Epic 2).