Event types-update event type availability scheduleCALENDLY_MCP_EVENT_TYPES_UPDATE_EVENT_TYPE_AVAILABILITY_SCHEDULE
Use: Overwrite the availability schedule for an event type.
When: User requests schedule changes (hours, days, one-off date overrides) for an event type.
Needs: Event type URI and current rules from `event_types-list_event_type_availability_schedule`.
Do: Must copy existing rules verbatim, modify only requested entries, send full rules array with IANA timezone. wday rules need `wday` field; date rules need `date` field (YYYY-MM-DD); `intervals` is list of `{from, to}` in HH:MM 24h.
Avoid: Constructing rules from scratch or sending a partial array—this endpoint overwrites all rules.
Then: Re-read schedule with `event_types-list_event_type_availability_schedule` to confirm.