Change a booking's location and/or conferencing

Change a booking's physical location and/or its conferencing.

Two independent fields; send only the one you change. An omitted field is left as is, and null clears it:

• selected_location: a location object, e.g. {"kind": "in_person_host", "address": "1 Market St"}, {"kind": "phone_host", "phone": "+14155550100"} or {"kind": "custom", "display_label": "Lobby"}.
• selected_conferencing: {"kind": "link", "link": "https://..."} for a meeting URL, or {"kind": "conferencing", "provider": "zoom"} (also roam_auto, ms_teams, google_meet), which creates a NEW meeting room.
• notify_attendees (default true): the host is always emailed.

The host's calendar event is updated too; calendar_synced in the response is false when that update failed (the change is saved either way). Errors: 404 when the booking is not visible to the caller, 409 when it is cancelled, past, imported or changed meanwhile, 422 for an invalid value or a provider the host has not connected, 429 past the per-booking edit limit, 502 when a new meeting room could not be created (nothing is changed then).