- Working-hours repo accepts nullable staff scope (pgx + memory); staff
rules live in availability_rules and drive public slot generation
- Protected routes for staff working hours, class templates, and class
sessions with tenant-ownership checks and input validation
- Sessions derive endsAt/capacity from templates; list resolves location
names and live booked counts; template delete cascades sessions,
session delete preserves bookings via SET NULL (mirrored in memory)
- Zones page: staff-scope selector on working hours, new Classes tab
with template/session CRUD, CS+EN strings, mobile tab wrapping
- Normalize availability_rules times to HH:MM in the service layer
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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
