Create a new job with optional custom fields and job type field validation.

Pass exactly one of customer_id or project_id. With project_id the job is created as one of that project's jobs: customer, brand and default location are inherited, and the job joins the project's pool unscheduled unless scheduled_start/scheduled_end pin it to its own window.

location_id is the site the work happens at and must be one of the job customer's locations. Left out, it falls back to the project's location and then to the customer's primary location.

parent_job_id and kind are never accepted as input.

operator_form_data and resource_form_data are keyed by job type field id and validated against the job type. A number field takes a JSON number (numeric text such as "12.5" is accepted and stored as a number). A signature field takes { "dataUri": "data:image/png;base64,...", "capturedAt": "<ISO 8601>" } (a bare data URI string is accepted and stored in that shape, stamped with the request time). A file field takes an array of file metadata objects or URLs (a single one is accepted and stored as a one-item array).

Scopes: create:jobs and read:jobs (the created job is read back in the response).