Epic 4: Maxi — AI gift concierge

[Tar-ive]

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

Personas: Giver, Privacy-minded user

• 4.1 Ask Maxi for a gift ✅ — As a Giver, I want to give Maxi a budget/vibe/recipient and get real picks, so that I'm not figuring it out alone.
  • /feed/maxi is a full agentic chat (also a slide-over) with a shared transcript + cart.
• 4.2 Maxi builds a cart ✅ — As a Giver, I want Maxi to line up picks in my cart, so that I can act in one place.
  • Maxi and product cards read/write the same cart helpers.
• 4.3 Maxi visual search 🟡 — As a Giver, I want to show Maxi a photo, so that it finds gifts in that style.
  • Depends on visual-search wiring (3.4).
• 4.4 Safe AI ✅ — As a Privacy-minded user, I want PII stripped before the AI, so that I can ask freely.
  • Emails/phone/payment/ID numbers redacted server-side before text reaches the model.