Fix prompt-card titles, isolate guest/account material, and persist Space logins.

Fix Heidi login matching and keep accounts on the Space data mount.

Emerald light theme + homepage topic photos

Ship Heidi panel feedback: specialty lanes, all-advisor chat, and quieter onboarding.

Fix demo-facing Healthy Eating branding leftovers.

Initial first draft: Heidi Boudro Healthy Eating Advisor panel.