Each client now gets their own clients.ics_token (lazily generated on
first /owner/settings visit), which both authenticates and scopes
/api/bookings.ics -- closing the gap where any shared-token holder
could view another client's bookings by swapping the client_id query
param. The owner settings page now surfaces a copyable subscribe URL.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Adds a session-authenticated /owner/settings blueprint for services CRUD
(create/edit/deactivate), per-resource opening hours + min-notice/max-advance/
buffer, and client-level auto_confirm/notify_channel — all scoped to the
logged-in owner's own client_id. Extends booking_db.py with the missing
tenant-scoped update_service/update_resource/update_client writes, mirroring
the existing update_booking allowlist pattern.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
mivanchenko