scripts/seed-demo.js — one open Pulse with realistic context, marks
"Traceability layer" as shipping with shipped_at -2 days and attributes
it to the cab user, two events (dinner in 5 weeks, office hours in 2
weeks), six hand-crafted activity rows mixing all 5 activity kinds so
the ticker has something to scroll on first load. Idempotent: skips if
any pulses exist. Backdates Lars's cab_joined_date so the greeting
renders "2 years, 4 months". Wired to db:setup and db:seed:demo.
Also fixes a parse bug on /pulse: SQL stores last_seen_at as
'YYYY-MM-DD HH:MM:SS' UTC, but new Date(string) parses that as local
time — on a non-UTC server the freshness check was wrong by the server's
offset. Coerce to UTC ISO before parsing. Manual smoke as Lars now shows
two member chips in "online now"; admin tabs all render.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
