Scope: write:maintenance

Only once the job has been acknowledged (in Loop or with POST …/{id}/acknowledge), and
while it's pending; otherwise 409.
The quote is Received; the job's status doesn't change. contractorId is an entry in the
agency's address book (/v2/address-book). There are no line items: put the breakdown on
the quote document, uploaded to the job with POST /v2/documents?entity_type=MaintenanceJob.

The agency fee is optional: agencyFeeType percentage with agencyFeePercentage (10 is
10%), or fixedFee with agencyFeeAmount in pounds. VAT is worked out by Loop from the
rates. Putting the fee on the property's charge isn't offered here; an agent can do it in
Loop. No emails are sent.