Fixes#525
The `checklist()` function in `home.js` treated steps and FAQ/checklist
as mutually exclusive — if `homeCfg.checklist` existed, steps were
skipped entirely. Adding a single FAQ via the customizer made all intro
steps disappear.
Now renders steps first, then FAQ below with a '❓ FAQ' header. Falls
back to Bay Area hardcoded defaults only when neither exists.
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Co-authored-by: you <you@example.com>