Get what a job and its run were charged

Ledger view of what the job, and the whole run it belongs to (the root job plus every job it spawned), were actually charged. Unlike GET /jobs/{id}/price, nothing here falls back to an estimate: charged_cents is money that moved, estimated_cents is a quote, and held_cents is credits set aside for work still running. All amounts are integer credits (1 credit = 1 cent), in fields named *_cents. Pass a root or child job id.