621ce942b5
Move the scheduled-email business-hours floor onto the business profile
as Google-style per-weekday opening blocks (multiple blocks/day for lunch
breaks). Migration 114 adds business_profile.business_hours (JSON) +
scheduled_email_floor_enabled; emailProcessor snaps a queued email to the
next open block, read in the profile timezone. Editor lives under
Settings → Business profile.
Add an admin "Send queued emails now" flush (POST /admin/email/flush-queue)
that drains the queue immediately, ignoring the business-hours floor — the
escape hatch before maintenance/updates. processEmailQueue now takes
{ignoreSchedule, limit} and returns send counts; the scheduled interval
run is unchanged.