"Allowed duration of a service combination" lived inside
AppointmentController::serviceSlots(). Three upcoming callers need the same
computation (PATCH duration validation, service-aware reschedule, reserve
conversion); copying it would mean four variants with four different edge-case
behaviours.
The extraction is behaviour-preserving: BaseController::error() and
ExceptionSubscriber emit an identical envelope, so returning $this->error() was
replaced by throwing AppException with the same code/message/field.
Tenant ownership now goes through TenantOwnershipChecker::belongsToPair() (the
documented single point) instead of an inline section pair comparison. The repo
property is named itemRepo on purpose: TenantLookupInventoryTest only counts
recognised property names, so any other name would slip past the safety net.
The naive duration sum is kept deliberately — switching to solo/additional
minutes is task 04 and changes one line here.
Task: docs/new_feture/taskes/task-00-service-mode-completion/
Slot-mode contract: unchanged (--group=slot-mode-frozen green)
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
